X-Git-Url: https://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fthreadlib.m4;h=bff01bc5eeaf13070806f0a04dff6e8162a4f6e0;hb=64865499c9cf8748356a0857a8481d74b394bd79;hp=01ee9ddb156f3a6e4ed315534a51e78c9ce99579;hpb=ec062d7a2671739dd977ebde3965fc93f8678a2e;p=gnulib.git

diff --git a/m4/threadlib.m4 b/m4/threadlib.m4
index 01ee9ddb1..bff01bc5e 100644
--- a/m4/threadlib.m4
+++ b/m4/threadlib.m4
@@ -120,13 +120,16 @@ AC_DEFUN([gl_THREADLIB_BODY],
        if test $gl_cv_have_weak = maybe; then
          dnl Second, test whether it actually works. On Cygwin 1.7.2, with
          dnl gcc 4.3, symbols declared weak always evaluate to the address 0.
-         AC_TRY_RUN([
+         AC_RUN_IFELSE(
+           [AC_LANG_SOURCE([[
 #include <stdio.h>
 #pragma weak fputs
 int main ()
 {
   return (fputs == NULL);
-}], [gl_cv_have_weak=yes], [gl_cv_have_weak=no],
+}]])],
+           [gl_cv_have_weak=yes],
+           [gl_cv_have_weak=no],
            [dnl When cross-compiling, assume that only ELF platforms support
             dnl weak symbols.
             AC_EGREP_CPP([Extensible Linking Format],