Dmitry V. Levin
e2a3370f67
On some systems missing gnu/stubs-*.h files make -m32/-mx32 compilation checks fail. As we want to support multiple personalities despite of this limitation, workaround the check by creating empty gnu stub files if necessary. * m4/mpers.m4 (st_MPERS): Check for the gnu stub file. Create an empty gnu stub file if the system one is missing. * Makefile.am (DISTCLEANFILES): Add gnu/stubs-32.h and gnu/stubs-x32.h.
71 lines
1.9 KiB
Plaintext
71 lines
1.9 KiB
Plaintext
AC_DEFUN([st_MPERS],[
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pushdef([MPERS_NAME], translit([$1], [a-z], [A-Z]))
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pushdef([HAVE_MPERS], [HAVE_]MPERS_NAME[_MPERS])
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pushdef([HAVE_RUNTIME], [HAVE_]MPERS_NAME[_RUNTIME])
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pushdef([CFLAG], [-$1])
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pushdef([st_cv_cc], [st_cv_$1_cc])
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pushdef([st_cv_runtime], [st_cv_$1_runtime])
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pushdef([st_cv_mpers], [st_cv_$1_mpers])
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case "$arch" in
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[$2])
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AH_TEMPLATE([HAVE_GNU_STUBS_32_H],
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[Define to 1 if you have the <gnu/stubs-32.h> header file.])
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AH_TEMPLATE([HAVE_GNU_STUBS_X32_H],
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[Define to 1 if you have the <gnu/stubs-x32.h> header file.])
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pushdef([gnu_stubs], [gnu/stubs-][m4_substr([$1], 1)][.h])
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AC_CHECK_HEADERS([gnu_stubs], [IFLAG=],
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[mkdir -p gnu
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: > gnu_stubs
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AC_MSG_NOTICE([Created empty gnu_stubs])
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IFLAG=-I.])
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popdef([gnu_stubs])
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saved_CFLAGS="$CFLAGS"
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CFLAGS="$CFLAGS CFLAG $IFLAG"
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AC_CACHE_CHECK([for CFLAG compile support], [st_cv_cc],
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[AC_COMPILE_IFELSE([AC_LANG_SOURCE([[#include <stdint.h>
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int main(){return 0;}]])],
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[st_cv_cc=yes],
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[st_cv_cc=no])])
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if test $st_cv_cc = yes; then
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AC_CACHE_CHECK([for CFLAG runtime support], [st_cv_runtime],
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[AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdint.h>
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int main(){return 0;}]])],
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[st_cv_runtime=yes],
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[st_cv_runtime=no],
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[st_cv_runtime=no])])
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AC_CACHE_CHECK([whether mpers.sh CFLAG works], [st_cv_mpers],
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[if CC="$CC" CPP="$CPP" CPPFLAGS="$CPPFLAGS" \
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$srcdir/mpers_test.sh [$1]; then
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st_cv_mpers=yes
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else
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st_cv_mpers=no
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fi])
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if test $st_cv_mpers = yes; then
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AC_DEFINE(HAVE_MPERS, [1],
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[Define to 1 if you have CFLAG mpers support])
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fi
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fi
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CFLAGS="$saved_CFLAGS"
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;;
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*)
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st_cv_runtime=no
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st_cv_mpers=no
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;;
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esac
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AM_CONDITIONAL(HAVE_RUNTIME, [test "$st_cv_runtime" = yes])
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AM_CONDITIONAL(HAVE_MPERS, [test "$st_cv_mpers" = yes])
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popdef([st_cv_mpers])
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popdef([st_cv_runtime])
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popdef([st_cv_cc])
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popdef([CFLAG])
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popdef([HAVE_RUNTIME])
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popdef([HAVE_MPERS])
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popdef([MPERS_NAME])
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])
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