flush

[m6w6/ext-psi] / config.m4

diff --git a/config.m4 b/config.m4
index 2c7af0b58cbe2d0fec1d7534000c0f0da53b6370..98c064876b0a384ace46dbf8b52a704b4b9b4850 100644 (file)
--- a/config.m4
+++ b/config.m4
@@ -48,7 +48,7 @@ PHP_ARG_ENABLE(psi, whether to enable PHP System Interface support,
 
 if test "$PHP_PSI" != no; then
        PHP_CONFIGURE_PART(Configuring PSI)
-
+       
        PHP_ARG_ENABLE(psi-posix, whether to pre-define POSIX decls,
        [  --enable-psi-posix=...  PSI: pre-define POSIX decls], [ ], [ ])
 
@@ -60,6 +60,20 @@ if test "$PHP_PSI" != no; then
 
        AC_HEADER_ASSERT dnl # adds --disable-assert to define NDEBUG
        
+       dnl we cannot use AC_USE_SYSTEM_EXTENSIONS here, because we're way too late
+       dnl in the game, and we're currently only targeting _GNU_SOURCE for now
+       AC_MSG_CHECKING([for _GNU_SOURCE])
+       AC_EGREP_CPP([gnu_source_defined], [
+               #ifndef _GNU_SOURCE
+               gnu_source_not_defined
+               #endif
+       ], [
+               AC_MSG_RESULT([needs define])
+               AC_DEFINE([_GNU_SOURCE], [], [ ])
+       ], [
+               AC_MSG_RESULT([already defined])
+       ])
+
        psi_save_LIBS=$LIBS
        LIBS=