tests: avoid a spurious failure with MSVC

Fixes automake bug#14498.

* t/yacc-bison-skeleton.sh: inline was not standardized prior to C99.

Signed-off-by: Peter Rosin <peda@lysator.liu.se>

diff --git a/t/yacc-bison-skeleton.sh b/t/yacc-bison-skeleton.sh
index b89d44c..4553f7e 100644 (file)
--- a/t/yacc-bison-skeleton.sh
+++ b/t/yacc-bison-skeleton.sh
@@ -22,6 +22,7 @@ required='cc bison'
 
 cat >> configure.ac << 'END'
 AC_PROG_CC
+AC_C_INLINE    dnl Required by some pre-C99 compilers such as MSVC.
 AC_PROG_YACC
 AC_OUTPUT
 END