Removed --posix from awk invocation in test-anno.

[nmh] / configure.ac

diff --git a/configure.ac b/configure.ac
index 86c7c376d1fdc8985a6c69029aca4d7c561cecf9..bb42a6ac44456e68cd9f54a3dc960c29c6660733 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -93,14 +93,19 @@ dnl ------------------
 dnl We want these before the checks,
 dnl so the checks can modify their values.
 test -z "$CFLAGS" && CFLAGS= auto_cflags=1
-dnl TEMPORARILY ENABLE DEBUG
-if test x"$enable_debug" = x""; then
+if test x"$enable_debug" = x"yes"; then
   test -z "$LDFLAGS" && LDFLAGS=-g
 fi
 
-AC_PROG_CC
+AC_PROG_CC(cc gcc)
 AM_PROG_CC_C_O
 
+dnl Use -v and some other options with SunStudio cc.
+case `${CC} -V 2>&1` in
+  cc:\ Sun\ C*) CFLAGS="${CFLAGS:+$CFLAGS }-v -errtags=yes"
+                CFLAGS="${CFLAGS} -erroff=E_STATEMENT_NOT_REACHED" ;;
+esac
+
 AC_CACHE_CHECK([whether compiler supports -Wextra], [nmh_cv_has_wextra],
 [nmh_saved_cflags="$CFLAGS"
  CFLAGS="$CFLAGS -Wextra -Werror"
@@ -108,9 +113,9 @@ AC_CACHE_CHECK([whether compiler supports -Wextra], [nmh_cv_has_wextra],
  CFLAGS="$nmh_saved_cflags"])
 
 dnl Can't use -ansi with gcc 4.5.3 on Cygwin, at least through setup
-dnl setup version 2.763, because it disables some features in the
-dnl system system header files and warns about them with -Wall.  Try
-dnl to test for that generally, though still with gcc.
+dnl version 2.763, because it disables some features in the system
+dnl header files and warns about them with -Wall.  Try to test for
+dnl that generally, though still with gcc.
 if test "$GCC" = yes; then
   AC_CACHE_CHECK([whether we can use -ansi with gcc], [nmh_cv_has_dash_ansi],
     [nmh_saved_cppflags="$CPPFLAGS"
@@ -122,6 +127,20 @@ if test "$GCC" = yes; then
        [nmh_cv_has_dash_ansi=no])
      CPPFLAGS="$nmh_saved_cppflags"
      CFLAGS="$nmh_saved_cflags"])
+
+  dnl Disable clang complaint about unused -ansi when linking.
+  AC_CACHE_CHECK([whether linker supports -Qunused-arguments],
+                 [nmh_cv_has_q_unused_arguments],
+    [nmh_saved_ldflags="$LDFLAGS"
+     LDFLAGS="$LDFLAGS -Qunused-arguments"
+     AC_TRY_LINK([],[],nmh_cv_has_q_unused_arguments=yes,
+                 nmh_cv_has_q_unused_arguments=no)
+     LDFLAGS="$nmh_saved_ldflags"])
+
+  if test "$nmh_cv_has_q_unused_arguments" = "yes"; then
+    test -z "$LDFLAGS" && LDFLAGS=-Qunused-arguments \
+                       || LDFLAGS="$LDFLAGS -Qunused-arguments"
+  fi
 else
   nmh_cv_has_dash_ansi=no
 fi
@@ -144,8 +163,7 @@ if test "$nmh_cv_has_wextra" = "yes"; then
 fi
 
 if test -n "$auto_cflags"; then
-  dnl TEMPORARILY ENABLE DEBUG
-  if test x"$enable_debug" = x""; then
+  if test x"$enable_debug" = x"yes"; then
     if test -n "$GCC"; then
       test -z "$CFLAGS" && CFLAGS="$nmh_gcc_warnflags -g" || CFLAGS="$CFLAGS $nmh_gcc_warnflags -g"
     else
@@ -665,6 +683,3 @@ dnl ---------------
 AC_CONFIG_FILES([Makefile test/common.sh])
 AC_CONFIG_FILES([uip/spost], [chmod +x uip/spost])
 AC_OUTPUT
-
-dnl TEMPORARY
-cat /usr/include/iconv.h