diff options
Diffstat (limited to 'lib/replace/libreplace_cc.m4')
| -rw-r--r-- | lib/replace/libreplace_cc.m4 | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/lib/replace/libreplace_cc.m4 b/lib/replace/libreplace_cc.m4 new file mode 100644 index 0000000000..30c63f2f05 --- /dev/null +++ b/lib/replace/libreplace_cc.m4 @@ -0,0 +1,182 @@ + +AC_DEFUN_ONCE(AC__LIBREPLACE_ONLY_CC_CHECKS_START, +[ +echo "LIBREPLACE_CC_CHECKS: START" +]) + +AC_DEFUN_ONCE(AC__LIBREPLACE_ONLY_CC_CHECKS_END, +[ +echo "LIBREPLACE_CC_CHECKS: END" +]) + +dnl +dnl +dnl AC_LIBREPLACE_CC_CHECKS +dnl +dnl Note: we need to use m4_define instead of AC_DEFUN because +dnl of the ordering of tests +dnl +dnl +m4_define(AC_LIBREPLACE_CC_CHECKS, +[ +AC__LIBREPLACE_ONLY_CC_CHECKS_START + +dnl stop the C89 attempt by autoconf - if autoconf detects -Ae it will enable it +dnl which conflicts with C99 on HPUX +ac_cv_prog_cc_Ae=no + +savedCFLAGS=$CFLAGS +AC_PROG_CC +CFLAGS=$savedCFLAGS + +dnl don't try for C99 if we are using gcc, as otherwise we +dnl lose immediate structure constants +if test x"$GCC" != x"yes" ; then +AC_PROG_CC_C99 +fi + +if test x"$GCC" = x"yes" ; then + AC_MSG_CHECKING([for version of gcc]) + GCC_VERSION=`$CC -dumpversion` + AC_MSG_RESULT(${GCC_VERSION}) +fi +AC_USE_SYSTEM_EXTENSIONS +AC_C_BIGENDIAN +AC_C_INLINE +LIBREPLACE_C99_STRUCT_INIT([],[AC_MSG_WARN([c99 structure initializer are not supported])]) + +AC_PROG_INSTALL + +AC_ISC_POSIX +AC_N_DEFINE(_XOPEN_SOURCE_EXTENDED) + +AC_SYS_LARGEFILE + +dnl Add #include for broken IRIX header files +case "$host_os" in + *irix6*) AC_ADD_INCLUDE(<standards.h>) + ;; + *hpux*) + # mmap on HPUX is completely broken... + AC_DEFINE(MMAP_BLACKLIST, 1, [Whether MMAP is broken]) + if test "`uname -r`" = "B.11.00" -o "`uname -r`" = "B.11.11"; then + AC_MSG_WARN([Enabling HPUX 11.00/11.11 header bug workaround]) + CFLAGS="$CFLAGS -Dpread=pread64 -Dpwrite=pwrite64" + fi + if test "`uname -r`" = "B.11.23"; then + AC_MSG_WARN([Enabling HPUX 11.23 machine/sys/getppdp.h bug workaround]) + CFLAGS="$CFLAGS -D_MACHINE_SYS_GETPPDP_INCLUDED" + fi + ;; + *aix*) + AC_DEFINE(BROKEN_STRNDUP, 1, [Whether strndup is broken]) + AC_DEFINE(BROKEN_STRNLEN, 1, [Whether strnlen is broken]) + if test "${GCC}" != "yes"; then + ## for funky AIX compiler using strncpy() + CFLAGS="$CFLAGS -D_LINUX_SOURCE_COMPAT -qmaxmem=32000" + fi + ;; + *osf*) + # this brings in socklen_t + AC_N_DEFINE(_XOPEN_SOURCE,600) + AC_N_DEFINE(_OSF_SOURCE) + ;; + # + # VOS may need to have POSIX support and System V compatibility enabled. + # + *vos*) + case "$CFLAGS" in + *-D_POSIX_C_SOURCE*);; + *) + CFLAGS="$CFLAGS -D_POSIX_C_SOURCE=200112L" + AC_DEFINE(_POSIX_C_SOURCE, 200112L, [Whether to enable POSIX support]) + ;; + esac + case "$CFLAGS" in + *-D_SYSV*|*-D_SVID_SOURCE*);; + *) + CFLAGS="$CFLAGS -D_SYSV" + AC_DEFINE(_SYSV, 1, [Whether to enable System V compatibility]) + ;; + esac + ;; +esac + + + +AC_CHECK_HEADERS([standards.h]) + +# Solaris needs HAVE_LONG_LONG defined +AC_CHECK_TYPES(long long) + +AC_CHECK_SIZEOF(int) +AC_CHECK_SIZEOF(char) +AC_CHECK_SIZEOF(short) +AC_CHECK_SIZEOF(long) +AC_CHECK_SIZEOF(long long) + +AC_CHECK_TYPE(uint_t, unsigned int) +AC_CHECK_TYPE(int8_t, char) +AC_CHECK_TYPE(uint8_t, unsigned char) +AC_CHECK_TYPE(int16_t, short) +AC_CHECK_TYPE(uint16_t, unsigned short) + +if test $ac_cv_sizeof_int -eq 4 ; then +AC_CHECK_TYPE(int32_t, int) +AC_CHECK_TYPE(uint32_t, unsigned int) +elif test $ac_cv_size_long -eq 4 ; then +AC_CHECK_TYPE(int32_t, long) +AC_CHECK_TYPE(uint32_t, unsigned long) +else +AC_MSG_ERROR([LIBREPLACE no 32-bit type found]) +fi + +AC_CHECK_TYPE(int64_t, long long) +AC_CHECK_TYPE(uint64_t, unsigned long long) + +AC_CHECK_TYPE(size_t, unsigned int) +AC_CHECK_TYPE(ssize_t, int) + +AC_CHECK_SIZEOF(off_t) +AC_CHECK_SIZEOF(size_t) +AC_CHECK_SIZEOF(ssize_t) + +AC_CHECK_TYPE(intptr_t, long long) +AC_CHECK_TYPE(uintptr_t, unsigned long long) +AC_CHECK_TYPE(ptrdiff_t, unsigned long long) + +if test x"$ac_cv_type_long_long" != x"yes";then + AC_MSG_ERROR([LIBREPLACE needs type 'long long']) +fi +if test $ac_cv_sizeof_long_long -lt 8;then + AC_MSG_ERROR([LIBREPLACE needs sizeof(long long) >= 8]) +fi + +############################################ +# check if the compiler can do immediate structures +AC_SUBST(libreplace_cv_immediate_structures) +AC_CACHE_CHECK([for immediate structures],libreplace_cv_immediate_structures,[ + AC_TRY_COMPILE([ + #include <stdio.h> + ],[ + typedef struct {unsigned x;} FOOBAR; + #define X_FOOBAR(x) ((FOOBAR) { x }) + #define FOO_ONE X_FOOBAR(1) + FOOBAR f = FOO_ONE; + static const struct { + FOOBAR y; + } f2[] = { + {FOO_ONE} + }; + static const FOOBAR f3[] = {FOO_ONE}; + ], + libreplace_cv_immediate_structures=yes, + libreplace_cv_immediate_structures=no, + libreplace_cv_immediate_structures=cross) +]) +if test x"$libreplace_cv_immediate_structures" = x"yes"; then + AC_DEFINE(HAVE_IMMEDIATE_STRUCTURES,1,[Whether the compiler supports immediate structures]) +fi + +AC__LIBREPLACE_ONLY_CC_CHECKS_END +]) dnl end AC_LIBREPLACE_CC_CHECKS |