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https://github.com/samba-team/samba.git
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331435daf3
problem is that the AC_PROG_CC_C99 macro ends up selecting either -std=std99 or -std=gnu99 for gcc. Ironically enough, that breaks constant structure initialisers! So, simplest solution is to not try that configure test if we know we are using gcc
154 lines
3.6 KiB
Plaintext
154 lines
3.6 KiB
Plaintext
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AC_DEFUN_ONCE(AC__LIBREPLACE_ONLY_CC_CHECKS_START,
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[
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echo "LIBREPLACE_CC_CHECKS: START"
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])
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AC_DEFUN_ONCE(AC__LIBREPLACE_ONLY_CC_CHECKS_END,
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[
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echo "LIBREPLACE_CC_CHECKS: END"
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])
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dnl
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dnl
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dnl AC_LIBREPLACE_CC_CHECKS
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dnl
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dnl Note: we need to use m4_define instead of AC_DEFUN because
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dnl of the ordering of tests
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dnl
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dnl
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m4_define(AC_LIBREPLACE_CC_CHECKS,
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[
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AC__LIBREPLACE_ONLY_CC_CHECKS_START
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dnl stop the C89 attempt by autoconf - if autoconf detects -Ae it will enable it
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dnl which conflicts with C99 on HPUX
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ac_cv_prog_cc_Ae=no
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savedCFLAGS=$CFLAGS
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AC_PROG_CC
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CFLAGS=$savedCFLAGS
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dnl don't try for C99 if we are using gcc, as otherwise we
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dnl lose immediate structure constants
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if test x"$GCC" = x"no" ; then
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AC_PROG_CC_C99
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fi
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if test x"$GCC" = x"yes" ; then
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AC_MSG_CHECKING([for version of gcc])
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GCC_VERSION=`$CC -dumpversion`
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AC_MSG_RESULT(${GCC_VERSION})
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fi
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AC_USE_SYSTEM_EXTENSIONS
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AC_C_BIGENDIAN
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AC_C_INLINE
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LIBREPLACE_C99_STRUCT_INIT([],[AC_MSG_WARN([c99 structure initializer are not supported])])
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AC_PROG_INSTALL
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AC_ISC_POSIX
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AC_EXTENSION_FLAG(_XOPEN_SOURCE_EXTENDED)
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AC_EXTENSION_FLAG(_OSF_SOURCE)
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AC_SYS_LARGEFILE
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dnl Add #include for broken IRIX header files
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case "$host_os" in
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*irix6*) AC_ADD_INCLUDE(<standards.h>)
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;;
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*hpux*)
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# mmap on HPUX is completely broken...
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AC_DEFINE(MMAP_BLACKLIST, 1, [Whether MMAP is broken])
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;;
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*aix*)
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if test "${GCC}" != "yes"; then
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## for funky AIX compiler using strncpy()
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CFLAGS="$CFLAGS -D_LINUX_SOURCE_COMPAT -qmaxmem=32000"
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fi
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;;
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#
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# VOS may need to have POSIX support and System V compatibility enabled.
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#
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*vos*)
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case "$CFLAGS" in
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*-D_POSIX_C_SOURCE*);;
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*)
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CFLAGS="$CFLAGS -D_POSIX_C_SOURCE=200112L"
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AC_DEFINE(_POSIX_C_SOURCE, 200112L, [Whether to enable POSIX support])
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;;
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esac
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case "$CFLAGS" in
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*-D_SYSV*|*-D_SVID_SOURCE*);;
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*)
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CFLAGS="$CFLAGS -D_SYSV"
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AC_DEFINE(_SYSV, 1, [Whether to enable System V compatibility])
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;;
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esac
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;;
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esac
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AC_CHECK_HEADERS([standards.h])
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# Solaris needs HAVE_LONG_LONG defined
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AC_CHECK_TYPES(long long)
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AC_CHECK_TYPE(uint_t, unsigned int)
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AC_CHECK_TYPE(int8_t, char)
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AC_CHECK_TYPE(uint8_t, unsigned char)
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AC_CHECK_TYPE(int16_t, short)
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AC_CHECK_TYPE(uint16_t, unsigned short)
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AC_CHECK_TYPE(int32_t, long)
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AC_CHECK_TYPE(uint32_t, unsigned long)
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AC_CHECK_TYPE(int64_t, long long)
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AC_CHECK_TYPE(uint64_t, unsigned long long)
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AC_CHECK_TYPE(size_t, unsigned int)
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AC_CHECK_TYPE(ssize_t, int)
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AC_CHECK_SIZEOF(int)
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AC_CHECK_SIZEOF(char)
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AC_CHECK_SIZEOF(short)
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AC_CHECK_SIZEOF(long)
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AC_CHECK_SIZEOF(long long)
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AC_CHECK_SIZEOF(off_t)
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AC_CHECK_SIZEOF(size_t)
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AC_CHECK_SIZEOF(ssize_t)
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AC_CHECK_TYPE(intptr_t, unsigned long long)
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AC_CHECK_TYPE(ptrdiff_t, unsigned long long)
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if test x"$ac_cv_type_long_long" != x"yes";then
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AC_MSG_ERROR([LIBREPLACE needs type 'long long'])
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fi
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if test $ac_cv_sizeof_long_long -lt 8;then
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AC_MSG_ERROR([LIBREPLACE needs sizeof(long long) >= 8])
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fi
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############################################
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# check if the compiler can do immediate structures
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AC_CACHE_CHECK([for immediate structures],samba_cv_immediate_structures, [
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AC_TRY_COMPILE([
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#include <stdio.h>],
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[
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typedef struct {unsigned x;} FOOBAR;
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#define X_FOOBAR(x) ((FOOBAR) { x })
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#define FOO_ONE X_FOOBAR(1)
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FOOBAR f = FOO_ONE;
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static const struct {
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FOOBAR y;
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} f2[] = {
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{FOO_ONE}
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};
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],
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samba_cv_immediate_structures=yes,samba_cv_immediate_structures=no)])
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if test x"$samba_cv_immediate_structures" = x"yes"; then
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AC_DEFINE(HAVE_IMMEDIATE_STRUCTURES,1,[Whether the compiler supports immediate structures])
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fi
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AC__LIBREPLACE_ONLY_CC_CHECKS_END
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]) dnl end AC_LIBREPLACE_CC_CHECKS
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