uniqstr: fix assertion

[bison.git] / configure.ac

diff --git a/configure.ac b/configure.ac
index e6ef8baf91a3877b0e255816fc3a76f2a42d9228..f7319a153d52f6c6f6bb53fe7fd98fd5684f75c9 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -91,7 +91,7 @@ if test "$enable_gcc_warnings" = yes; then
   # -fno-color-diagnostics: Clang's use of colors in the error
   # messages is confusing the tests looking at the compiler's output
   # (e.g., synclines.at).
-  warn_tests='-Wundef -pedantic -fno-color-diagnostics'
+  warn_tests='-Wundef -pedantic -Wsign-compare -fno-color-diagnostics'
 
   AC_LANG_PUSH([C])
   # Clang supports many of GCC's -W options, but only issues warnings
@@ -144,7 +144,9 @@ if test "$enable_gcc_warnings" = yes; then
   done
   # Clang++ 3.2+ reject C code generated by Flex.
   gl_WARN_ADD([-Wno-null-conversion], [FLEX_SCANNER_CXXFLAGS])
-  # So does G++ 4.8 in std=c++11 mode.
+  # So does G++ 4.8...
+  gl_WARN_ADD([-Wno-sign-compare], [FLEX_SCANNER_CXXFLAGS])
+  # ... possiby in std=c++11 mode.
   gl_WARN_ADD([-Wno-zero-as-null-pointer-constant], [FLEX_SCANNER_CXXFLAGS])
   CXXFLAGS=$save_CXXFLAGS
   AC_LANG_POP([C++])
@@ -228,10 +230,16 @@ case $VALGRIND:$host_os in
   '':*) ;;
   *:darwin*)
     # See README-hacking.
-    # VALGRIND+=' --suppressions=$(abs_top_srcdir)/build-aux/darwin11.4.0.valgrind'
+    # VALGRIND+='-q --suppressions=$(abs_top_srcdir)/build-aux/darwin11.4.0.valgrind'
     VALGRIND=;;
   *:*)
-    AC_SUBST([VALGRIND_PREBISON], ["$VALGRIND -q"]);;
+    suppfile=build-aux/$host_os.valgrind
+    if test -f "$srcdir/$suppfile"; then
+      VALGRIND="$VALGRIND --gen-suppressions=all"
+      VALGRIND="$VALGRIND --suppressions=\$(abs_top_srcdir)/$suppfile"
+    fi
+    AC_SUBST([VALGRIND_PREBISON], ["$VALGRIND -q"])
+    ;;
 esac
 
 AM_MISSING_PROG([AUTOM4TE], [autom4te])