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strace/m4/ax_prog_cc_for_build.m4

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Fix cross-compiling of ioctlsort Use the AX_PROG_CC_FOR_BUILD helper to set up build settings when cross compiling. This way ioctlsort uses the build tools all the time. * configure.ac: Call AX_PROG_CC_FOR_BUILD. * Makefile.am (ioctlsort_CC): Set to CC_FOR_BUILD. (ioctlsort_CPPFLAGS): Change CPPFLAGS to CPPFLAGS_FOR_BUILD. (ioctlsort_CFLAGS): Change CFLAGS to CFLAGS_FOR_BUILD. (ioctlsort_LDFLAGS): Change LDFLAGS to LDFLAGS_FOR_BUILD. (ioctlsort_LD): Delete. (ioctlsort%): Change to ioctlsort%$(BUILD_EXEEXT). Use ioctlsort_CFLAGS. * m4/ax_prog_cc_for_build.m4: Import from the autoconf-archive package.
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# ===========================================================================
# http://www.gnu.org/software/autoconf-archive/ax_prog_cc_for_build.html
# ===========================================================================
#
# SYNOPSIS
#
# AX_PROG_CC_FOR_BUILD
#
# DESCRIPTION
#
# This macro searches for a C compiler that generates native executables,
# that is a C compiler that surely is not a cross-compiler. This can be
# useful if you have to generate source code at compile-time like for
# example GCC does.
#
# The macro sets the CC_FOR_BUILD and CPP_FOR_BUILD macros to anything
# needed to compile or link (CC_FOR_BUILD) and preprocess (CPP_FOR_BUILD).
# The value of these variables can be overridden by the user by specifying
# a compiler with an environment variable (like you do for standard CC).
#
# It also sets BUILD_EXEEXT and BUILD_OBJEXT to the executable and object
# file extensions for the build platform, and GCC_FOR_BUILD to `yes' if
# the compiler we found is GCC. All these variables but GCC_FOR_BUILD are
# substituted in the Makefile.
#
# LICENSE
#
# Copyright (c) 2008 Paolo Bonzini <bonzini@gnu.org>
#
# Copying and distribution of this file, with or without modification, are
# permitted in any medium without royalty provided the copyright notice
# and this notice are preserved. This file is offered as-is, without any
# warranty.
#serial 8
AX_PROG_CC_FOR_BUILD: redirect more variables related to C compiler Some of these variables cannot be redirected using traditional pushdef/popdef mechanism because of complex constructions like [ac_cv_[]_AC_LANG_ABBREV[]_compiler_gnu] employed by autoconf macros. Use st_SAVE_VAR/st_RESTORE_VAR to workaround this issue. * m4/ax_prog_cc_for_build.m4: Redirect ac_cv_prog_cc_stdc, ac_cv_prog_cc_c11, ac_cv_prog_cc_c99, ac_cv_prog_cc_c89, am_cv_prog_cc_c_o, and am_cv_CC_dependencies_compiler_type using pushdef/popdef. Redirect ac_c_decl_warn_flag, ac_c_preproc_warn_flag, ac_c_werror_flag, ac_compile, ac_compiler_gnu, ac_cpp, ac_cv_c_compiler_gnu, ac_cv_c_decl_report, and ac_link using st_SAVE_VAR/st_RESTORE_VAR.
2016-12-07 00:59:12 +00:00
#modified for strace project
Fix cross-compiling of ioctlsort Use the AX_PROG_CC_FOR_BUILD helper to set up build settings when cross compiling. This way ioctlsort uses the build tools all the time. * configure.ac: Call AX_PROG_CC_FOR_BUILD. * Makefile.am (ioctlsort_CC): Set to CC_FOR_BUILD. (ioctlsort_CPPFLAGS): Change CPPFLAGS to CPPFLAGS_FOR_BUILD. (ioctlsort_CFLAGS): Change CFLAGS to CFLAGS_FOR_BUILD. (ioctlsort_LDFLAGS): Change LDFLAGS to LDFLAGS_FOR_BUILD. (ioctlsort_LD): Delete. (ioctlsort%): Change to ioctlsort%$(BUILD_EXEEXT). Use ioctlsort_CFLAGS. * m4/ax_prog_cc_for_build.m4: Import from the autoconf-archive package.
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AU_ALIAS([AC_PROG_CC_FOR_BUILD], [AX_PROG_CC_FOR_BUILD])
AC_DEFUN([AX_PROG_CC_FOR_BUILD], [dnl
AC_REQUIRE([AC_PROG_CC])dnl
AC_REQUIRE([AC_PROG_CPP])dnl
AC_REQUIRE([AC_EXEEXT])dnl
AC_REQUIRE([AC_CANONICAL_HOST])dnl
dnl Use the standard macros, but make them use other variable names
dnl
pushdef([ac_cv_prog_CPP], ac_cv_build_prog_CPP)dnl
pushdef([ac_cv_prog_gcc], ac_cv_build_prog_gcc)dnl
pushdef([ac_cv_prog_cc_works], ac_cv_build_prog_cc_works)dnl
pushdef([ac_cv_prog_cc_cross], ac_cv_build_prog_cc_cross)dnl
pushdef([ac_cv_prog_cc_g], ac_cv_build_prog_cc_g)dnl
AX_PROG_CC_FOR_BUILD: redirect more variables related to C compiler Some of these variables cannot be redirected using traditional pushdef/popdef mechanism because of complex constructions like [ac_cv_[]_AC_LANG_ABBREV[]_compiler_gnu] employed by autoconf macros. Use st_SAVE_VAR/st_RESTORE_VAR to workaround this issue. * m4/ax_prog_cc_for_build.m4: Redirect ac_cv_prog_cc_stdc, ac_cv_prog_cc_c11, ac_cv_prog_cc_c99, ac_cv_prog_cc_c89, am_cv_prog_cc_c_o, and am_cv_CC_dependencies_compiler_type using pushdef/popdef. Redirect ac_c_decl_warn_flag, ac_c_preproc_warn_flag, ac_c_werror_flag, ac_compile, ac_compiler_gnu, ac_cpp, ac_cv_c_compiler_gnu, ac_cv_c_decl_report, and ac_link using st_SAVE_VAR/st_RESTORE_VAR.
2016-12-07 00:59:12 +00:00
pushdef([ac_cv_prog_cc_stdc], ac_cv_build_prog_cc_stdc)dnl
pushdef([ac_cv_prog_cc_c11], ac_cv_build_prog_cc_c11)dnl
pushdef([ac_cv_prog_cc_c99], ac_cv_build_prog_cc_c99)dnl
pushdef([ac_cv_prog_cc_c89], ac_cv_build_prog_cc_c89)dnl
Fix cross-compiling of ioctlsort Use the AX_PROG_CC_FOR_BUILD helper to set up build settings when cross compiling. This way ioctlsort uses the build tools all the time. * configure.ac: Call AX_PROG_CC_FOR_BUILD. * Makefile.am (ioctlsort_CC): Set to CC_FOR_BUILD. (ioctlsort_CPPFLAGS): Change CPPFLAGS to CPPFLAGS_FOR_BUILD. (ioctlsort_CFLAGS): Change CFLAGS to CFLAGS_FOR_BUILD. (ioctlsort_LDFLAGS): Change LDFLAGS to LDFLAGS_FOR_BUILD. (ioctlsort_LD): Delete. (ioctlsort%): Change to ioctlsort%$(BUILD_EXEEXT). Use ioctlsort_CFLAGS. * m4/ax_prog_cc_for_build.m4: Import from the autoconf-archive package.
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pushdef([ac_cv_exeext], ac_cv_build_exeext)dnl
pushdef([ac_cv_objext], ac_cv_build_objext)dnl
pushdef([ac_exeext], ac_build_exeext)dnl
pushdef([ac_objext], ac_build_objext)dnl
pushdef([CC], CC_FOR_BUILD)dnl
pushdef([CPP], CPP_FOR_BUILD)dnl
pushdef([CFLAGS], CFLAGS_FOR_BUILD)dnl
pushdef([CPPFLAGS], CPPFLAGS_FOR_BUILD)dnl
pushdef([LDFLAGS], LDFLAGS_FOR_BUILD)dnl
Makefile.am: don't confuse CFLAGS and CFLAGS_FOR_BUILD Commit dc427d50d96b15c9a64d7e78d97ce4d194622a63 enabled a number of extra warning flags through configure.ac. The configure script will determine dynamically if CC supports these flags before adding them to WARN_CFLAGS. ioctlsort is compiled with CC_FOR_BUILD, rather than CC. Nevertheless, the flags passed to this compilation also include WARN_CFLAGS (through AM_CFLAGS). This is incorrect: in a cross-compilation use case, CC and CC_FOR_BUILD are not the same. The former is the cross-compiler, the latter is the host compiler. Both may be of different versions and support different warning flags. In particular, this posed a problem when cross-compiling with a host compiler gcc 4.1, which does not support all the new flags: /usr/bin/gcc -DHAVE_CONFIG_H -I./linux/arm -I./linux/arm -I./linux -I./linux -I. -I. -I/host-sysroot/usr/include -Wall -Wempty-body -Wformat-security -Wignored-qualifiers -Winit-self -Wlogical-op -Wmissing-parameter-type -Wnested-externs -Wold-style-declaration -Wold-style-definition -Wsign-compare -Wtype-limits -Wwrite-strings -O2 -I/host-sysroot/usr/include -DIOCTLSORT_INC=\"ioctls_all0.h\" -c -o ioctlsort0.o ./ioctlsort.c cc1: error: unrecognized command line option "-Wempty-body" cc1: error: unrecognized command line option "-Wignored-qualifiers" cc1: error: unrecognized command line option "-Wlogical-op" cc1: error: unrecognized command line option "-Wmissing-parameter-type" cc1: error: unrecognized command line option "-Wold-style-declaration" cc1: error: unrecognized command line option "-Wtype-limits" make[2]: *** [ioctlsort0.o] Error 1 * Makefile.am (AM_CFLAGS_FOR_BUILD, AM_CPPFLAGS_FOR_BUILD): New variables. (ioctlsort_CPPFLAGS): Use AM_CPPFLAGS_FOR_BUILD instead of AM_CPPFLAGS. (ioctlsort_CFLAGS): Use AM_CFLAGS_FOR_BUILD instead of AM_CFLAGS. (ioctlsort_LDFLAGS): Use AM_LDFLAGS_FOR_BUILD instead of AM_LDFLAGS. * m4/ax_prog_cc_for_build.m4 (AX_PROG_CC_FOR_BUILD): Redirect WARN_CFLAGS and gl_unknown_warnings_are_errors, call st_WARN_CFLAGS, substitute WARN_CFLAGS_FOR_BUILD. Signed-off-by: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
2016-10-18 13:42:44 +02:00
pushdef([WARN_CFLAGS], WARN_CFLAGS_FOR_BUILD)dnl
Fix cross-compiling of ioctlsort Use the AX_PROG_CC_FOR_BUILD helper to set up build settings when cross compiling. This way ioctlsort uses the build tools all the time. * configure.ac: Call AX_PROG_CC_FOR_BUILD. * Makefile.am (ioctlsort_CC): Set to CC_FOR_BUILD. (ioctlsort_CPPFLAGS): Change CPPFLAGS to CPPFLAGS_FOR_BUILD. (ioctlsort_CFLAGS): Change CFLAGS to CFLAGS_FOR_BUILD. (ioctlsort_LDFLAGS): Change LDFLAGS to LDFLAGS_FOR_BUILD. (ioctlsort_LD): Delete. (ioctlsort%): Change to ioctlsort%$(BUILD_EXEEXT). Use ioctlsort_CFLAGS. * m4/ax_prog_cc_for_build.m4: Import from the autoconf-archive package.
2015-02-26 22:22:36 -05:00
pushdef([host], build)dnl
pushdef([host_alias], build_alias)dnl
pushdef([host_cpu], build_cpu)dnl
pushdef([host_vendor], build_vendor)dnl
pushdef([host_os], build_os)dnl
pushdef([ac_cv_host], ac_cv_build)dnl
pushdef([ac_cv_host_alias], ac_cv_build_alias)dnl
pushdef([ac_cv_host_cpu], ac_cv_build_cpu)dnl
pushdef([ac_cv_host_vendor], ac_cv_build_vendor)dnl
pushdef([ac_cv_host_os], ac_cv_build_os)dnl
AX_PROG_CC_FOR_BUILD: redirect more variables related to C compiler Some of these variables cannot be redirected using traditional pushdef/popdef mechanism because of complex constructions like [ac_cv_[]_AC_LANG_ABBREV[]_compiler_gnu] employed by autoconf macros. Use st_SAVE_VAR/st_RESTORE_VAR to workaround this issue. * m4/ax_prog_cc_for_build.m4: Redirect ac_cv_prog_cc_stdc, ac_cv_prog_cc_c11, ac_cv_prog_cc_c99, ac_cv_prog_cc_c89, am_cv_prog_cc_c_o, and am_cv_CC_dependencies_compiler_type using pushdef/popdef. Redirect ac_c_decl_warn_flag, ac_c_preproc_warn_flag, ac_c_werror_flag, ac_compile, ac_compiler_gnu, ac_cpp, ac_cv_c_compiler_gnu, ac_cv_c_decl_report, and ac_link using st_SAVE_VAR/st_RESTORE_VAR.
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pushdef([am_cv_prog_cc_c_o], am_cv_build_prog_cc_c_o)dnl
pushdef([am_cv_CC_dependencies_compiler_type], am_cv_build_CC_dependencies_compiler_type)dnl
Makefile.am: don't confuse CFLAGS and CFLAGS_FOR_BUILD Commit dc427d50d96b15c9a64d7e78d97ce4d194622a63 enabled a number of extra warning flags through configure.ac. The configure script will determine dynamically if CC supports these flags before adding them to WARN_CFLAGS. ioctlsort is compiled with CC_FOR_BUILD, rather than CC. Nevertheless, the flags passed to this compilation also include WARN_CFLAGS (through AM_CFLAGS). This is incorrect: in a cross-compilation use case, CC and CC_FOR_BUILD are not the same. The former is the cross-compiler, the latter is the host compiler. Both may be of different versions and support different warning flags. In particular, this posed a problem when cross-compiling with a host compiler gcc 4.1, which does not support all the new flags: /usr/bin/gcc -DHAVE_CONFIG_H -I./linux/arm -I./linux/arm -I./linux -I./linux -I. -I. -I/host-sysroot/usr/include -Wall -Wempty-body -Wformat-security -Wignored-qualifiers -Winit-self -Wlogical-op -Wmissing-parameter-type -Wnested-externs -Wold-style-declaration -Wold-style-definition -Wsign-compare -Wtype-limits -Wwrite-strings -O2 -I/host-sysroot/usr/include -DIOCTLSORT_INC=\"ioctls_all0.h\" -c -o ioctlsort0.o ./ioctlsort.c cc1: error: unrecognized command line option "-Wempty-body" cc1: error: unrecognized command line option "-Wignored-qualifiers" cc1: error: unrecognized command line option "-Wlogical-op" cc1: error: unrecognized command line option "-Wmissing-parameter-type" cc1: error: unrecognized command line option "-Wold-style-declaration" cc1: error: unrecognized command line option "-Wtype-limits" make[2]: *** [ioctlsort0.o] Error 1 * Makefile.am (AM_CFLAGS_FOR_BUILD, AM_CPPFLAGS_FOR_BUILD): New variables. (ioctlsort_CPPFLAGS): Use AM_CPPFLAGS_FOR_BUILD instead of AM_CPPFLAGS. (ioctlsort_CFLAGS): Use AM_CFLAGS_FOR_BUILD instead of AM_CFLAGS. (ioctlsort_LDFLAGS): Use AM_LDFLAGS_FOR_BUILD instead of AM_LDFLAGS. * m4/ax_prog_cc_for_build.m4 (AX_PROG_CC_FOR_BUILD): Redirect WARN_CFLAGS and gl_unknown_warnings_are_errors, call st_WARN_CFLAGS, substitute WARN_CFLAGS_FOR_BUILD. Signed-off-by: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
2016-10-18 13:42:44 +02:00
pushdef([gl_unknown_warnings_are_errors], gl_build_unknown_warnings_are_errors)dnl
Fix cross-compiling of ioctlsort Use the AX_PROG_CC_FOR_BUILD helper to set up build settings when cross compiling. This way ioctlsort uses the build tools all the time. * configure.ac: Call AX_PROG_CC_FOR_BUILD. * Makefile.am (ioctlsort_CC): Set to CC_FOR_BUILD. (ioctlsort_CPPFLAGS): Change CPPFLAGS to CPPFLAGS_FOR_BUILD. (ioctlsort_CFLAGS): Change CFLAGS to CFLAGS_FOR_BUILD. (ioctlsort_LDFLAGS): Change LDFLAGS to LDFLAGS_FOR_BUILD. (ioctlsort_LD): Delete. (ioctlsort%): Change to ioctlsort%$(BUILD_EXEEXT). Use ioctlsort_CFLAGS. * m4/ax_prog_cc_for_build.m4: Import from the autoconf-archive package.
2015-02-26 22:22:36 -05:00
AX_PROG_CC_FOR_BUILD: redirect more variables related to C compiler Some of these variables cannot be redirected using traditional pushdef/popdef mechanism because of complex constructions like [ac_cv_[]_AC_LANG_ABBREV[]_compiler_gnu] employed by autoconf macros. Use st_SAVE_VAR/st_RESTORE_VAR to workaround this issue. * m4/ax_prog_cc_for_build.m4: Redirect ac_cv_prog_cc_stdc, ac_cv_prog_cc_c11, ac_cv_prog_cc_c99, ac_cv_prog_cc_c89, am_cv_prog_cc_c_o, and am_cv_CC_dependencies_compiler_type using pushdef/popdef. Redirect ac_c_decl_warn_flag, ac_c_preproc_warn_flag, ac_c_werror_flag, ac_compile, ac_compiler_gnu, ac_cpp, ac_cv_c_compiler_gnu, ac_cv_c_decl_report, and ac_link using st_SAVE_VAR/st_RESTORE_VAR.
2016-12-07 00:59:12 +00:00
st_SAVE_VAR([ac_c_decl_warn_flag])
st_SAVE_VAR([ac_c_preproc_warn_flag])
st_SAVE_VAR([ac_c_werror_flag])
st_SAVE_VAR([ac_compile])
st_SAVE_VAR([ac_compiler_gnu])
st_SAVE_VAR([ac_cpp])
st_SAVE_VAR([ac_cv_c_compiler_gnu])
st_SAVE_VAR([ac_cv_c_decl_report])
st_SAVE_VAR([ac_link])
st_SAVE_VAR([ac_tool_prefix])
st_SAVE_VAR([cross_compiling])
Fix cross-compiling of ioctlsort Use the AX_PROG_CC_FOR_BUILD helper to set up build settings when cross compiling. This way ioctlsort uses the build tools all the time. * configure.ac: Call AX_PROG_CC_FOR_BUILD. * Makefile.am (ioctlsort_CC): Set to CC_FOR_BUILD. (ioctlsort_CPPFLAGS): Change CPPFLAGS to CPPFLAGS_FOR_BUILD. (ioctlsort_CFLAGS): Change CFLAGS to CFLAGS_FOR_BUILD. (ioctlsort_LDFLAGS): Change LDFLAGS to LDFLAGS_FOR_BUILD. (ioctlsort_LD): Delete. (ioctlsort%): Change to ioctlsort%$(BUILD_EXEEXT). Use ioctlsort_CFLAGS. * m4/ax_prog_cc_for_build.m4: Import from the autoconf-archive package.
2015-02-26 22:22:36 -05:00
cross_compiling=no
AX_PROG_CC_FOR_BUILD: redirect more variables related to C compiler Some of these variables cannot be redirected using traditional pushdef/popdef mechanism because of complex constructions like [ac_cv_[]_AC_LANG_ABBREV[]_compiler_gnu] employed by autoconf macros. Use st_SAVE_VAR/st_RESTORE_VAR to workaround this issue. * m4/ax_prog_cc_for_build.m4: Redirect ac_cv_prog_cc_stdc, ac_cv_prog_cc_c11, ac_cv_prog_cc_c99, ac_cv_prog_cc_c89, am_cv_prog_cc_c_o, and am_cv_CC_dependencies_compiler_type using pushdef/popdef. Redirect ac_c_decl_warn_flag, ac_c_preproc_warn_flag, ac_c_werror_flag, ac_compile, ac_compiler_gnu, ac_cpp, ac_cv_c_compiler_gnu, ac_cv_c_decl_report, and ac_link using st_SAVE_VAR/st_RESTORE_VAR.
2016-12-07 00:59:12 +00:00
AC_MSG_NOTICE([looking for a C compiler that generates native executables])
Fix cross-compiling of ioctlsort Use the AX_PROG_CC_FOR_BUILD helper to set up build settings when cross compiling. This way ioctlsort uses the build tools all the time. * configure.ac: Call AX_PROG_CC_FOR_BUILD. * Makefile.am (ioctlsort_CC): Set to CC_FOR_BUILD. (ioctlsort_CPPFLAGS): Change CPPFLAGS to CPPFLAGS_FOR_BUILD. (ioctlsort_CFLAGS): Change CFLAGS to CFLAGS_FOR_BUILD. (ioctlsort_LDFLAGS): Change LDFLAGS to LDFLAGS_FOR_BUILD. (ioctlsort_LD): Delete. (ioctlsort%): Change to ioctlsort%$(BUILD_EXEEXT). Use ioctlsort_CFLAGS. * m4/ax_prog_cc_for_build.m4: Import from the autoconf-archive package.
2015-02-26 22:22:36 -05:00
AC_PROG_CC
AC_PROG_CPP
AC_EXEEXT
Makefile.am: don't confuse CFLAGS and CFLAGS_FOR_BUILD Commit dc427d50d96b15c9a64d7e78d97ce4d194622a63 enabled a number of extra warning flags through configure.ac. The configure script will determine dynamically if CC supports these flags before adding them to WARN_CFLAGS. ioctlsort is compiled with CC_FOR_BUILD, rather than CC. Nevertheless, the flags passed to this compilation also include WARN_CFLAGS (through AM_CFLAGS). This is incorrect: in a cross-compilation use case, CC and CC_FOR_BUILD are not the same. The former is the cross-compiler, the latter is the host compiler. Both may be of different versions and support different warning flags. In particular, this posed a problem when cross-compiling with a host compiler gcc 4.1, which does not support all the new flags: /usr/bin/gcc -DHAVE_CONFIG_H -I./linux/arm -I./linux/arm -I./linux -I./linux -I. -I. -I/host-sysroot/usr/include -Wall -Wempty-body -Wformat-security -Wignored-qualifiers -Winit-self -Wlogical-op -Wmissing-parameter-type -Wnested-externs -Wold-style-declaration -Wold-style-definition -Wsign-compare -Wtype-limits -Wwrite-strings -O2 -I/host-sysroot/usr/include -DIOCTLSORT_INC=\"ioctls_all0.h\" -c -o ioctlsort0.o ./ioctlsort.c cc1: error: unrecognized command line option "-Wempty-body" cc1: error: unrecognized command line option "-Wignored-qualifiers" cc1: error: unrecognized command line option "-Wlogical-op" cc1: error: unrecognized command line option "-Wmissing-parameter-type" cc1: error: unrecognized command line option "-Wold-style-declaration" cc1: error: unrecognized command line option "-Wtype-limits" make[2]: *** [ioctlsort0.o] Error 1 * Makefile.am (AM_CFLAGS_FOR_BUILD, AM_CPPFLAGS_FOR_BUILD): New variables. (ioctlsort_CPPFLAGS): Use AM_CPPFLAGS_FOR_BUILD instead of AM_CPPFLAGS. (ioctlsort_CFLAGS): Use AM_CFLAGS_FOR_BUILD instead of AM_CFLAGS. (ioctlsort_LDFLAGS): Use AM_LDFLAGS_FOR_BUILD instead of AM_LDFLAGS. * m4/ax_prog_cc_for_build.m4 (AX_PROG_CC_FOR_BUILD): Redirect WARN_CFLAGS and gl_unknown_warnings_are_errors, call st_WARN_CFLAGS, substitute WARN_CFLAGS_FOR_BUILD. Signed-off-by: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
2016-10-18 13:42:44 +02:00
st_WARN_CFLAGS
AX_PROG_CC_FOR_BUILD: redirect more variables related to C compiler Some of these variables cannot be redirected using traditional pushdef/popdef mechanism because of complex constructions like [ac_cv_[]_AC_LANG_ABBREV[]_compiler_gnu] employed by autoconf macros. Use st_SAVE_VAR/st_RESTORE_VAR to workaround this issue. * m4/ax_prog_cc_for_build.m4: Redirect ac_cv_prog_cc_stdc, ac_cv_prog_cc_c11, ac_cv_prog_cc_c99, ac_cv_prog_cc_c89, am_cv_prog_cc_c_o, and am_cv_CC_dependencies_compiler_type using pushdef/popdef. Redirect ac_c_decl_warn_flag, ac_c_preproc_warn_flag, ac_c_werror_flag, ac_compile, ac_compiler_gnu, ac_cpp, ac_cv_c_compiler_gnu, ac_cv_c_decl_report, and ac_link using st_SAVE_VAR/st_RESTORE_VAR.
2016-12-07 00:59:12 +00:00
st_RESTORE_VAR([cross_compiling])
st_RESTORE_VAR([ac_tool_prefix])
st_RESTORE_VAR([ac_link])
st_RESTORE_VAR([ac_cv_c_decl_report])
st_RESTORE_VAR([ac_cv_c_compiler_gnu])
st_RESTORE_VAR([ac_cpp])
st_RESTORE_VAR([ac_compiler_gnu])
st_RESTORE_VAR([ac_compile])
st_RESTORE_VAR([ac_c_werror_flag])
st_RESTORE_VAR([ac_c_preproc_warn_flag])
st_RESTORE_VAR([ac_c_decl_warn_flag])
Fix cross-compiling of ioctlsort Use the AX_PROG_CC_FOR_BUILD helper to set up build settings when cross compiling. This way ioctlsort uses the build tools all the time. * configure.ac: Call AX_PROG_CC_FOR_BUILD. * Makefile.am (ioctlsort_CC): Set to CC_FOR_BUILD. (ioctlsort_CPPFLAGS): Change CPPFLAGS to CPPFLAGS_FOR_BUILD. (ioctlsort_CFLAGS): Change CFLAGS to CFLAGS_FOR_BUILD. (ioctlsort_LDFLAGS): Change LDFLAGS to LDFLAGS_FOR_BUILD. (ioctlsort_LD): Delete. (ioctlsort%): Change to ioctlsort%$(BUILD_EXEEXT). Use ioctlsort_CFLAGS. * m4/ax_prog_cc_for_build.m4: Import from the autoconf-archive package.
2015-02-26 22:22:36 -05:00
dnl Restore the old definitions
dnl
Makefile.am: don't confuse CFLAGS and CFLAGS_FOR_BUILD Commit dc427d50d96b15c9a64d7e78d97ce4d194622a63 enabled a number of extra warning flags through configure.ac. The configure script will determine dynamically if CC supports these flags before adding them to WARN_CFLAGS. ioctlsort is compiled with CC_FOR_BUILD, rather than CC. Nevertheless, the flags passed to this compilation also include WARN_CFLAGS (through AM_CFLAGS). This is incorrect: in a cross-compilation use case, CC and CC_FOR_BUILD are not the same. The former is the cross-compiler, the latter is the host compiler. Both may be of different versions and support different warning flags. In particular, this posed a problem when cross-compiling with a host compiler gcc 4.1, which does not support all the new flags: /usr/bin/gcc -DHAVE_CONFIG_H -I./linux/arm -I./linux/arm -I./linux -I./linux -I. -I. -I/host-sysroot/usr/include -Wall -Wempty-body -Wformat-security -Wignored-qualifiers -Winit-self -Wlogical-op -Wmissing-parameter-type -Wnested-externs -Wold-style-declaration -Wold-style-definition -Wsign-compare -Wtype-limits -Wwrite-strings -O2 -I/host-sysroot/usr/include -DIOCTLSORT_INC=\"ioctls_all0.h\" -c -o ioctlsort0.o ./ioctlsort.c cc1: error: unrecognized command line option "-Wempty-body" cc1: error: unrecognized command line option "-Wignored-qualifiers" cc1: error: unrecognized command line option "-Wlogical-op" cc1: error: unrecognized command line option "-Wmissing-parameter-type" cc1: error: unrecognized command line option "-Wold-style-declaration" cc1: error: unrecognized command line option "-Wtype-limits" make[2]: *** [ioctlsort0.o] Error 1 * Makefile.am (AM_CFLAGS_FOR_BUILD, AM_CPPFLAGS_FOR_BUILD): New variables. (ioctlsort_CPPFLAGS): Use AM_CPPFLAGS_FOR_BUILD instead of AM_CPPFLAGS. (ioctlsort_CFLAGS): Use AM_CFLAGS_FOR_BUILD instead of AM_CFLAGS. (ioctlsort_LDFLAGS): Use AM_LDFLAGS_FOR_BUILD instead of AM_LDFLAGS. * m4/ax_prog_cc_for_build.m4 (AX_PROG_CC_FOR_BUILD): Redirect WARN_CFLAGS and gl_unknown_warnings_are_errors, call st_WARN_CFLAGS, substitute WARN_CFLAGS_FOR_BUILD. Signed-off-by: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
2016-10-18 13:42:44 +02:00
popdef([gl_unknown_warnings_are_errors])dnl
AX_PROG_CC_FOR_BUILD: redirect more variables related to C compiler Some of these variables cannot be redirected using traditional pushdef/popdef mechanism because of complex constructions like [ac_cv_[]_AC_LANG_ABBREV[]_compiler_gnu] employed by autoconf macros. Use st_SAVE_VAR/st_RESTORE_VAR to workaround this issue. * m4/ax_prog_cc_for_build.m4: Redirect ac_cv_prog_cc_stdc, ac_cv_prog_cc_c11, ac_cv_prog_cc_c99, ac_cv_prog_cc_c89, am_cv_prog_cc_c_o, and am_cv_CC_dependencies_compiler_type using pushdef/popdef. Redirect ac_c_decl_warn_flag, ac_c_preproc_warn_flag, ac_c_werror_flag, ac_compile, ac_compiler_gnu, ac_cpp, ac_cv_c_compiler_gnu, ac_cv_c_decl_report, and ac_link using st_SAVE_VAR/st_RESTORE_VAR.
2016-12-07 00:59:12 +00:00
popdef([am_cv_CC_dependencies_compiler_type])dnl
popdef([am_cv_prog_cc_c_o])dnl
Fix cross-compiling of ioctlsort Use the AX_PROG_CC_FOR_BUILD helper to set up build settings when cross compiling. This way ioctlsort uses the build tools all the time. * configure.ac: Call AX_PROG_CC_FOR_BUILD. * Makefile.am (ioctlsort_CC): Set to CC_FOR_BUILD. (ioctlsort_CPPFLAGS): Change CPPFLAGS to CPPFLAGS_FOR_BUILD. (ioctlsort_CFLAGS): Change CFLAGS to CFLAGS_FOR_BUILD. (ioctlsort_LDFLAGS): Change LDFLAGS to LDFLAGS_FOR_BUILD. (ioctlsort_LD): Delete. (ioctlsort%): Change to ioctlsort%$(BUILD_EXEEXT). Use ioctlsort_CFLAGS. * m4/ax_prog_cc_for_build.m4: Import from the autoconf-archive package.
2015-02-26 22:22:36 -05:00
popdef([ac_cv_host_os])dnl
popdef([ac_cv_host_vendor])dnl
popdef([ac_cv_host_cpu])dnl
popdef([ac_cv_host_alias])dnl
popdef([ac_cv_host])dnl
popdef([host_os])dnl
popdef([host_vendor])dnl
popdef([host_cpu])dnl
popdef([host_alias])dnl
popdef([host])dnl
Makefile.am: don't confuse CFLAGS and CFLAGS_FOR_BUILD Commit dc427d50d96b15c9a64d7e78d97ce4d194622a63 enabled a number of extra warning flags through configure.ac. The configure script will determine dynamically if CC supports these flags before adding them to WARN_CFLAGS. ioctlsort is compiled with CC_FOR_BUILD, rather than CC. Nevertheless, the flags passed to this compilation also include WARN_CFLAGS (through AM_CFLAGS). This is incorrect: in a cross-compilation use case, CC and CC_FOR_BUILD are not the same. The former is the cross-compiler, the latter is the host compiler. Both may be of different versions and support different warning flags. In particular, this posed a problem when cross-compiling with a host compiler gcc 4.1, which does not support all the new flags: /usr/bin/gcc -DHAVE_CONFIG_H -I./linux/arm -I./linux/arm -I./linux -I./linux -I. -I. -I/host-sysroot/usr/include -Wall -Wempty-body -Wformat-security -Wignored-qualifiers -Winit-self -Wlogical-op -Wmissing-parameter-type -Wnested-externs -Wold-style-declaration -Wold-style-definition -Wsign-compare -Wtype-limits -Wwrite-strings -O2 -I/host-sysroot/usr/include -DIOCTLSORT_INC=\"ioctls_all0.h\" -c -o ioctlsort0.o ./ioctlsort.c cc1: error: unrecognized command line option "-Wempty-body" cc1: error: unrecognized command line option "-Wignored-qualifiers" cc1: error: unrecognized command line option "-Wlogical-op" cc1: error: unrecognized command line option "-Wmissing-parameter-type" cc1: error: unrecognized command line option "-Wold-style-declaration" cc1: error: unrecognized command line option "-Wtype-limits" make[2]: *** [ioctlsort0.o] Error 1 * Makefile.am (AM_CFLAGS_FOR_BUILD, AM_CPPFLAGS_FOR_BUILD): New variables. (ioctlsort_CPPFLAGS): Use AM_CPPFLAGS_FOR_BUILD instead of AM_CPPFLAGS. (ioctlsort_CFLAGS): Use AM_CFLAGS_FOR_BUILD instead of AM_CFLAGS. (ioctlsort_LDFLAGS): Use AM_LDFLAGS_FOR_BUILD instead of AM_LDFLAGS. * m4/ax_prog_cc_for_build.m4 (AX_PROG_CC_FOR_BUILD): Redirect WARN_CFLAGS and gl_unknown_warnings_are_errors, call st_WARN_CFLAGS, substitute WARN_CFLAGS_FOR_BUILD. Signed-off-by: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
2016-10-18 13:42:44 +02:00
popdef([WARN_CFLAGS])dnl
Fix cross-compiling of ioctlsort Use the AX_PROG_CC_FOR_BUILD helper to set up build settings when cross compiling. This way ioctlsort uses the build tools all the time. * configure.ac: Call AX_PROG_CC_FOR_BUILD. * Makefile.am (ioctlsort_CC): Set to CC_FOR_BUILD. (ioctlsort_CPPFLAGS): Change CPPFLAGS to CPPFLAGS_FOR_BUILD. (ioctlsort_CFLAGS): Change CFLAGS to CFLAGS_FOR_BUILD. (ioctlsort_LDFLAGS): Change LDFLAGS to LDFLAGS_FOR_BUILD. (ioctlsort_LD): Delete. (ioctlsort%): Change to ioctlsort%$(BUILD_EXEEXT). Use ioctlsort_CFLAGS. * m4/ax_prog_cc_for_build.m4: Import from the autoconf-archive package.
2015-02-26 22:22:36 -05:00
popdef([LDFLAGS])dnl
popdef([CPPFLAGS])dnl
popdef([CFLAGS])dnl
popdef([CPP])dnl
popdef([CC])dnl
popdef([ac_objext])dnl
popdef([ac_exeext])dnl
popdef([ac_cv_objext])dnl
popdef([ac_cv_exeext])dnl
AX_PROG_CC_FOR_BUILD: redirect more variables related to C compiler Some of these variables cannot be redirected using traditional pushdef/popdef mechanism because of complex constructions like [ac_cv_[]_AC_LANG_ABBREV[]_compiler_gnu] employed by autoconf macros. Use st_SAVE_VAR/st_RESTORE_VAR to workaround this issue. * m4/ax_prog_cc_for_build.m4: Redirect ac_cv_prog_cc_stdc, ac_cv_prog_cc_c11, ac_cv_prog_cc_c99, ac_cv_prog_cc_c89, am_cv_prog_cc_c_o, and am_cv_CC_dependencies_compiler_type using pushdef/popdef. Redirect ac_c_decl_warn_flag, ac_c_preproc_warn_flag, ac_c_werror_flag, ac_compile, ac_compiler_gnu, ac_cpp, ac_cv_c_compiler_gnu, ac_cv_c_decl_report, and ac_link using st_SAVE_VAR/st_RESTORE_VAR.
2016-12-07 00:59:12 +00:00
popdef([ac_cv_prog_cc_c89])dnl
popdef([ac_cv_prog_cc_c99])dnl
popdef([ac_cv_prog_cc_c11])dnl
popdef([ac_cv_prog_cc_stdc])dnl
Fix cross-compiling of ioctlsort Use the AX_PROG_CC_FOR_BUILD helper to set up build settings when cross compiling. This way ioctlsort uses the build tools all the time. * configure.ac: Call AX_PROG_CC_FOR_BUILD. * Makefile.am (ioctlsort_CC): Set to CC_FOR_BUILD. (ioctlsort_CPPFLAGS): Change CPPFLAGS to CPPFLAGS_FOR_BUILD. (ioctlsort_CFLAGS): Change CFLAGS to CFLAGS_FOR_BUILD. (ioctlsort_LDFLAGS): Change LDFLAGS to LDFLAGS_FOR_BUILD. (ioctlsort_LD): Delete. (ioctlsort%): Change to ioctlsort%$(BUILD_EXEEXT). Use ioctlsort_CFLAGS. * m4/ax_prog_cc_for_build.m4: Import from the autoconf-archive package.
2015-02-26 22:22:36 -05:00
popdef([ac_cv_prog_cc_g])dnl
popdef([ac_cv_prog_cc_cross])dnl
popdef([ac_cv_prog_cc_works])dnl
popdef([ac_cv_prog_gcc])dnl
popdef([ac_cv_prog_CPP])dnl
dnl Finally, set Makefile variables
dnl
BUILD_EXEEXT=$ac_build_exeext
BUILD_OBJEXT=$ac_build_objext
AC_SUBST(BUILD_EXEEXT)dnl
AC_SUBST(BUILD_OBJEXT)dnl
AC_SUBST([CFLAGS_FOR_BUILD])dnl
AC_SUBST([CPPFLAGS_FOR_BUILD])dnl
AC_SUBST([LDFLAGS_FOR_BUILD])dnl
Makefile.am: don't confuse CFLAGS and CFLAGS_FOR_BUILD Commit dc427d50d96b15c9a64d7e78d97ce4d194622a63 enabled a number of extra warning flags through configure.ac. The configure script will determine dynamically if CC supports these flags before adding them to WARN_CFLAGS. ioctlsort is compiled with CC_FOR_BUILD, rather than CC. Nevertheless, the flags passed to this compilation also include WARN_CFLAGS (through AM_CFLAGS). This is incorrect: in a cross-compilation use case, CC and CC_FOR_BUILD are not the same. The former is the cross-compiler, the latter is the host compiler. Both may be of different versions and support different warning flags. In particular, this posed a problem when cross-compiling with a host compiler gcc 4.1, which does not support all the new flags: /usr/bin/gcc -DHAVE_CONFIG_H -I./linux/arm -I./linux/arm -I./linux -I./linux -I. -I. -I/host-sysroot/usr/include -Wall -Wempty-body -Wformat-security -Wignored-qualifiers -Winit-self -Wlogical-op -Wmissing-parameter-type -Wnested-externs -Wold-style-declaration -Wold-style-definition -Wsign-compare -Wtype-limits -Wwrite-strings -O2 -I/host-sysroot/usr/include -DIOCTLSORT_INC=\"ioctls_all0.h\" -c -o ioctlsort0.o ./ioctlsort.c cc1: error: unrecognized command line option "-Wempty-body" cc1: error: unrecognized command line option "-Wignored-qualifiers" cc1: error: unrecognized command line option "-Wlogical-op" cc1: error: unrecognized command line option "-Wmissing-parameter-type" cc1: error: unrecognized command line option "-Wold-style-declaration" cc1: error: unrecognized command line option "-Wtype-limits" make[2]: *** [ioctlsort0.o] Error 1 * Makefile.am (AM_CFLAGS_FOR_BUILD, AM_CPPFLAGS_FOR_BUILD): New variables. (ioctlsort_CPPFLAGS): Use AM_CPPFLAGS_FOR_BUILD instead of AM_CPPFLAGS. (ioctlsort_CFLAGS): Use AM_CFLAGS_FOR_BUILD instead of AM_CFLAGS. (ioctlsort_LDFLAGS): Use AM_LDFLAGS_FOR_BUILD instead of AM_LDFLAGS. * m4/ax_prog_cc_for_build.m4 (AX_PROG_CC_FOR_BUILD): Redirect WARN_CFLAGS and gl_unknown_warnings_are_errors, call st_WARN_CFLAGS, substitute WARN_CFLAGS_FOR_BUILD. Signed-off-by: Thomas De Schampheleire <thomas.de_schampheleire@nokia.com>
2016-10-18 13:42:44 +02:00
AC_SUBST([WARN_CFLAGS_FOR_BUILD])dnl
Fix cross-compiling of ioctlsort Use the AX_PROG_CC_FOR_BUILD helper to set up build settings when cross compiling. This way ioctlsort uses the build tools all the time. * configure.ac: Call AX_PROG_CC_FOR_BUILD. * Makefile.am (ioctlsort_CC): Set to CC_FOR_BUILD. (ioctlsort_CPPFLAGS): Change CPPFLAGS to CPPFLAGS_FOR_BUILD. (ioctlsort_CFLAGS): Change CFLAGS to CFLAGS_FOR_BUILD. (ioctlsort_LDFLAGS): Change LDFLAGS to LDFLAGS_FOR_BUILD. (ioctlsort_LD): Delete. (ioctlsort%): Change to ioctlsort%$(BUILD_EXEEXT). Use ioctlsort_CFLAGS. * m4/ax_prog_cc_for_build.m4: Import from the autoconf-archive package.
2015-02-26 22:22:36 -05:00
])
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