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Fix PR bootstrap/42798.
[pf3gnuchains/gcc-fork.git] / fixincludes / configure.ac
index e0058b1..2c488e7 100644 (file)
@@ -1,41 +1,94 @@
-AC_PREREQ(2.59)
+AC_PREREQ(2.64)
 
 AC_INIT(fixincludes, [ ])
 AC_CONFIG_SRCDIR(inclhack.def)
 AC_CONFIG_AUX_DIR(..)
+m4_sinclude(../libtool.m4)
 AC_CANONICAL_SYSTEM
 AC_PROG_CC
+AC_PROG_SED
+
+# Figure out what compiler warnings we can enable.
+# See config/warnings.m4 for details.
+
+ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wwrite-strings -Wstrict-prototypes \
+                         -Wmissing-prototypes -Wold-style-definition \
+                         -Wmissing-format-attribute -Wno-overlength-strings])
+ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([-Wno-long-long])
+
+# Only enable with --enable-werror-always until existing warnings are
+# corrected.
+ACX_PROG_CC_WARNINGS_ARE_ERRORS([manual])
+
+# Determine the noncanonical target name, for directory use.
+ACX_NONCANONICAL_TARGET
+
+# Specify the local prefix
+local_prefix=
+AC_ARG_WITH(local-prefix,
+[  --with-local-prefix=DIR specifies directory to put local include],
+[case "${withval}" in
+yes)   AC_MSG_ERROR(bad value ${withval} given for local include directory prefix) ;;
+no)    ;;
+*)     local_prefix=$with_local_prefix ;;
+esac])
+
+# Default local prefix if it is empty
+if test x$local_prefix = x; then
+       local_prefix=/usr/local
+fi
 
 # Choose one or two-process fix methodology.  Systems that cannot handle
 # bi-directional pipes must use the two process method.
 #
-case $host in
+AC_ARG_ENABLE([twoprocess],
+[  --enable-twoprocess       Use a separate process to apply the fixes],
+[if test "x$enable_twoprocess" = xyes; then
+       TARGET=twoprocess
+else
+       TARGET=oneprocess
+fi],
+[case $host in
        i?86-*-msdosdjgpp* | \
+       i?86-*-mingw32* | \
+       x86_64-*-mingw32* | \
        *-*-beos* )
                TARGET=twoprocess
-               AC_DEFINE(SEPARATE_FIX_PROC, 1, [Define if testing and fixing are done by separate process])
                ;;
 
-       vax-dec-bsd* )
+       * )
                TARGET=oneprocess
-               AC_DEFINE(exit, xexit, [Define to xexit if the host system does not support atexit])
-               AC_DEFINE(atexit, xatexit, [Define to xatexit if the host system does not support atexit])
                ;;
+esac])
+AC_SUBST(TARGET)
 
-       * )
-               TARGET=oneprocess
+if test $TARGET = twoprocess; then
+       AC_DEFINE(SEPARATE_FIX_PROC, 1,
+                 [Define if testing and fixing are done by separate process])
+fi
+
+case $host in
+       vax-dec-bsd* )
+               AC_DEFINE(exit, xexit, [Define to xexit if the host system does not support atexit])
+               AC_DEFINE(atexit, xatexit, [Define to xatexit if the host system does not support atexit])
                ;;
 esac
-AC_SUBST(TARGET)
+
+AC_DEFINE_UNQUOTED([EXE_EXT], "$ac_exeext",
+  [Defined to the executable file extension on the host system])
 
 # Checks for header files.
 AC_HEADER_STDC
 AC_CHECK_HEADERS([stddef.h stdlib.h strings.h unistd.h fcntl.h sys/file.h \
        sys/stat.h])
-AC_CHECK_FUNCS(putc_unlocked fputc_unlocked fputs_unlocked \
-        fwrite_unlocked fprintf_unlocked)
-AC_CHECK_DECLS([abort, errno, putc_unlocked, fputc_unlocked,
-        fputs_unlocked, fwrite_unlocked, fprintf_unlocked])
+define(fixincludes_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl
+  ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked dnl
+  fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked dnl
+  fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl
+  putchar_unlocked putc_unlocked)
+AC_CHECK_FUNCS(fixincludes_UNLOCKED_FUNCS)
+AC_CHECK_DECLS([abort, asprintf, basename(char *), errno, vasprintf])
+AC_CHECK_DECLS(m4_split(m4_normalize(fixincludes_UNLOCKED_FUNCS)))
 
 # Checks for typedefs, structures, and compiler characteristics.
 AC_C_CONST
@@ -56,7 +109,9 @@ else
   MAINT='#'
 fi     
 AC_SUBST(MAINT)
+AC_DEFINE_UNQUOTED([SED_PROGRAM], "${SED}",
+   [Defined to the best working sed program on the host system])
 
 AC_CONFIG_HEADERS(config.h, [echo timestamp > stamp-h])
-AC_CONFIG_FILES(Makefile)
+AC_CONFIG_FILES(Makefile mkheaders.almost:mkheaders.in)
 AC_OUTPUT