diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/configure.ac b/configure.ac index c1599831c..a50992d04 100644 --- a/configure.ac +++ b/configure.ac @@ -454,8 +454,17 @@ if test $gl_cv_list_mounted_fs = yes && test $gl_cv_fs_space = yes; then gl_ADD_PROG([optional_bin_progs], [df]) fi -AC_MSG_CHECKING([whether this is system supports stdbuf]) -AC_COMPILE_IFELSE( +ac_save_CFLAGS=$CFLAGS +ac_save_LDFLAGS=$LDFLAGS +# Detect warnings about ignored "constructor" attributes. +gl_WARN_ADD([-Werror], [CFLAGS]) +gl_WARN_ADD([-errwarn], [CFLAGS]) +# Put this message here, after gl_WARN_ADD's chatter. +AC_MSG_CHECKING([whether this system supports stdbuf]) +CFLAGS="-fPIC $CFLAGS" +LDFLAGS="-shared $LDFLAGS" +stdbuf_supported=no +AC_LINK_IFELSE( [AC_LANG_PROGRAM([[ static int stdbuf = 0; @@ -470,12 +479,13 @@ AC_COMPILE_IFELSE( }]],[[ return !(stdbuf == 1);]]) ], - [stdbuf_supported=yes], - [stdbuf_supported=no]) + [stdbuf_supported=yes]) AC_MSG_RESULT([$stdbuf_supported]) if test "$stdbuf_supported" = "yes" && test -z "$EXEEXT"; then gl_ADD_PROG([optional_bin_progs], [stdbuf]) fi +CFLAGS=$ac_save_CFLAGS +LDFLAGS=$ac_save_LDFLAGS ############################################################################ |