diff options
Diffstat (limited to 'source3/aclocal.m4')
| -rw-r--r-- | source3/aclocal.m4 | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/source3/aclocal.m4 b/source3/aclocal.m4 index b0f1f6c44d..54b1a56040 100644 --- a/source3/aclocal.m4 +++ b/source3/aclocal.m4 @@ -796,3 +796,75 @@ int main(void) ]) ]) +############################################ +# Check if the compiler handles c99 struct initialization, and if not try -AC99 and -c99 flags +# Usage: LIBREPLACE_C99_STRUCT_INIT(success-action,failure-action) +# changes CFLAGS to add -AC99 or -c99 if needed +AC_DEFUN([LIBREPLACE_C99_STRUCT_INIT], +[ +saved_CFLAGS="$CFLAGS"; +c99_init=no +if test x"$c99_init" = x"no"; then + AC_MSG_CHECKING(for C99 designated initializers) + CFLAGS="$saved_CFLAGS"; + AC_TRY_COMPILE([#include <stdio.h>], + [ struct foo {int x;char y;}; + struct foo bar = { .y = 'X', .x = 1 }; + ], + [AC_MSG_RESULT(yes); c99_init=yes],[AC_MSG_RESULT(no)]) +fi +if test x"$c99_init" = x"no"; then + AC_MSG_CHECKING(for C99 designated initializers with -AC99) + CFLAGS="$saved_CFLAGS -AC99"; + AC_TRY_COMPILE([#include <stdio.h>], + [ struct foo {int x;char y;}; + struct foo bar = { .y = 'X', .x = 1 }; + ], + [AC_MSG_RESULT(yes); c99_init=yes],[AC_MSG_RESULT(no)]) +fi +if test x"$c99_init" = x"no"; then + AC_MSG_CHECKING(for C99 designated initializers with -qlanglvl=extc99) + CFLAGS="$saved_CFLAGS -qlanglvl=extc99"; + AC_TRY_COMPILE([#include <stdio.h>], + [ struct foo {int x;char y;}; + struct foo bar = { .y = 'X', .x = 1 }; + ], + [AC_MSG_RESULT(yes); c99_init=yes],[AC_MSG_RESULT(no)]) +fi +if test x"$c99_init" = x"no"; then + AC_MSG_CHECKING(for C99 designated initializers with -qlanglvl=stdc99) + CFLAGS="$saved_CFLAGS -qlanglvl=stdc99"; + AC_TRY_COMPILE([#include <stdio.h>], + [ struct foo {int x;char y;}; + struct foo bar = { .y = 'X', .x = 1 }; + ], + [AC_MSG_RESULT(yes); c99_init=yes],[AC_MSG_RESULT(no)]) +fi +if test x"$c99_init" = x"no"; then + AC_MSG_CHECKING(for C99 designated initializers with -c99) + CFLAGS="$saved_CFLAGS -c99" + AC_TRY_COMPILE([#include <stdio.h>], + [ struct foo {int x;char y;}; + struct foo bar = { .y = 'X', .x = 1 }; + ], + [AC_MSG_RESULT(yes); c99_init=yes],[AC_MSG_RESULT(no)]) +fi + +if test "`uname`" = "HP-UX"; then + if test "$ac_cv_c_compiler_gnu" = no; then + # special override for broken HP-UX compiler - I can't find a way to test + # this properly (its a compiler bug) + CFLAGS="$CFLAGS -AC99"; + c99_init=yes; + fi +fi + +if test x"$c99_init" = x"yes"; then + saved_CFLAGS="" + $1 +else + CFLAGS="$saved_CFLAGS" + saved_CFLAGS="" + $2 +fi +]) |