X-Git-Url: https://diplodocus.org/git/nmh/blobdiff_plain/dbc395a6d80f378a6ebf82dc10334468a2861b0f..a1829d0ea1260a9e361191054d84242a9b7f0f15:/configure.ac

diff --git a/configure.ac b/configure.ac
index d8a51a47..238e17a4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -137,43 +137,16 @@ fi
 AC_PROG_CC
 AM_PROG_CC_C_O
 
-AC_CACHE_CHECK([whether preprocessor supports -Wunused-macros],
-  [nmh_cv_has_unusedmacros],
-  [nmh_saved_cppflags="$CPPFLAGS"
-   CPPFLAGS="$CPPFLAGS -Wunused-macros -Wno-unused-macros"
-   AC_TRY_COMPILE([],[],nmh_cv_has_unusedmacros=yes,nmh_cv_has_unusedmacros=no)
-   CPPFLAGS="$nmh_saved_cppflags"])
-
-if test "$nmh_cv_has_unusedmacros" = 'yes'; then
-  test -z "$CPPFLAGS"  &&  CPPFLAGS=-Wunused-macros \
-                      ||  CPPFLAGS="$CPPFLAGS -Wunused-macros"
-  DISABLE_UNUSED_MACROS_WARNING=-Wno-unused-macros
-fi
-AC_SUBST([DISABLE_UNUSED_MACROS_WARNING])dnl
-
-AC_CACHE_CHECK([whether compiler supports -Wno-sign-compare],
-  [nmh_cv_has_nosigncompare],
-  [nmh_saved_cppflags="$CPPFLAGS"
-   CPPFLAGS="$CPPFLAGS -Wno-sign-compare"
-   AC_TRY_COMPILE([],[],nmh_cv_has_nosigncompare=yes,
-                  nmh_cv_has_nosigncompare=no)
-   CPPFLAGS="$nmh_saved_cppflags"])
-
-if test "$nmh_cv_has_nosigncompare" = 'yes'; then
-  DISABLE_SIGN_COMPARE_WARNING=-Wno-sign-compare
-fi
-AC_SUBST([DISABLE_SIGN_COMPARE_WARNING])dnl
-
 AC_CACHE_CHECK([whether compiler supports -Wextra], [nmh_cv_has_wextra],
 [nmh_saved_cflags="$CFLAGS"
- CFLAGS="$CFLAGS -Wextra -Wno-clobbered"
+ CFLAGS="$CFLAGS -Wextra -Werror"
  AC_TRY_COMPILE([],[],nmh_cv_has_wextra=yes,nmh_cv_has_wextra=no)
  CFLAGS="$nmh_saved_cflags"])
 
-AC_CACHE_CHECK([whether compiler supports -Wno-pointer-sign], [nmh_cv_has_noptrsign],
+AC_CACHE_CHECK([whether compiler supports -Wno-clobbered], [nmh_cv_has_noclobbered],
 [nmh_saved_cflags="$CFLAGS"
- CFLAGS="$CFLAGS -Wno-pointer-sign"
- AC_TRY_COMPILE([],[],nmh_cv_has_noptrsign=yes,nmh_cv_has_noptrsign=no)
+ CFLAGS="$CFLAGS -Wno-clobbered -Werror"
+ AC_TRY_COMPILE([],[],nmh_cv_has_noclobbered=yes,nmh_cv_has_noclobbered=no)
  CFLAGS="$nmh_saved_cflags"])
 
 dnl Can't use -ansi with gcc 4.5.3 on Cygwin, at least through setup
@@ -203,24 +176,16 @@ dnl We use -Wall and -Wextra if supported.  If the compiler supports it we
 dnl also use -Wno-pointer-sign, because gcc 4 now produces a lot of new
 dnl warnings which are probably mostly spurious and which in any case we
 dnl don't want to deal with now.
-if test "$nmh_cv_has_noptrsign" = "yes"; then
-    if test "$nmh_cv_has_dash_ansi" = "yes"; then
-        nmh_gcc_common_flags="-ansi -pedantic -Wall"
-    else
-        nmh_gcc_common_flags="-Wall"
-    fi
-    if test "$nmh_cv_has_wextra" = "yes"; then
-        nmh_gcc_warnflags="${nmh_gcc_common_flags} -Wextra -Wno-clobbered "\
-"-Wno-pointer-sign"
-    else
-        nmh_gcc_warnflags="${nmh_gcc_common_flags} -Wno-pointer-sign"
-    fi
+if test "$nmh_cv_has_dash_ansi" = "yes"; then
+    nmh_gcc_warnflags="-ansi -pedantic -Wall"
 else
-    if test "$nmh_cv_has_wextra" = "yes"; then
-        nmh_gcc_warnflags="${nmh_gcc_common_flags} -Wextra -Wno-clobbered"
-    else
-        nmh_gcc_warnflags="${nmh_gcc_common_flags}"
-    fi
+    nmh_gcc_warnflags="-Wall"
+fi
+if test "$nmh_cv_has_wextra" = "yes"; then
+    nmh_gcc_warnflags="${nmh_gcc_warnflags} -Wextra"
+fi
+if test "$nmh_cv_has_noclobbered" = "yes"; then
+    nmh_gcc_warnflags="${nmh_gcc_warnflags} -Wno-clobbered"
 fi
 
 if test -n "$auto_cflags"; then
@@ -246,6 +211,8 @@ if test -n "$auto_cflags"; then
     else
       test -z "$CFLAGS" && CFLAGS=-O  || CFLAGS="$CFLAGS -O"
     fi
+    AC_DEFINE([NDEBUG], [1],
+              [Define to disable run-time debugging and asserts.])
   fi
 fi
 
@@ -271,7 +238,7 @@ dnl
 AC_CHECK_PROGS([MD5SUM], [md5sum md5], [missing])
 AS_CASE(["${MD5SUM}"],
 	[md5sum], [MD5FMT="cat"],
-	[md5], [[MD5FMT="${SED} -e 's/MD5 *(\(.*\)) *= \([0-9a-f]*\)/\2  \1/'"]],
+	[md5], [[MD5FMT="${SED} -e 's/MD5 *(.*) *= \([0-9a-f]*\)/\1/'"]],
 	[MD5FMT="missing"])
 AC_SUBST([MD5FMT])
 
@@ -407,15 +374,6 @@ AC_HEADER_TIOCGWINSZ
 AC_CHECK_HEADERS([fcntl.h ncurses/termcap.h termcap.h langinfo.h \
                   wchar.h wctype.h sys/param.h sys/time.h sys/stream.h])
 
-dnl
-dnl Checks for _IO_write_ptr. A Linuxism used by nmh on linux. We
-dnl really use a whole set of them, but this check should be
-dnl sufficient.
-dnl
-AC_CHECK_HEADER(libio.h, [
-  AC_EGREP_HEADER(_IO_write_ptr, libio.h, [
-    AC_DEFINE(LINUX_STDIO,1,[Use the Linux _IO_*_ptr defines from <libio.h>.]) ]) ])
-
 AC_CHECK_HEADER([sys/ptem.h], AC_DEFINE(WINSIZE_IN_PTEM,1,
   [Define to 1 if `struct winsize' requires <sys/ptem.h>.]),,
 [[#if HAVE_SYS_STREAM_H