2 # Process this file with autoconf to produce a configure script.
5 AC_INIT(cpplib, [ ], gcc-bugs@gcc.gnu.org, cpplib)
6 AC_CONFIG_SRCDIR(ucnid.h)
7 AC_CONFIG_MACRO_DIR(../config)
10 # Checks for programs.
19 # See if we are building gcc with C++.
20 # Do this early so setting lang to C++ affects following tests
21 AC_ARG_ENABLE(build-with-cxx,
22 [ --enable-build-with-cxx build with C++ compiler instead of C compiler],
23 ENABLE_BUILD_WITH_CXX=$enableval,
24 ENABLE_BUILD_WITH_CXX=no)
25 AC_SUBST(ENABLE_BUILD_WITH_CXX)
27 MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
28 AC_CHECK_PROGS([ACLOCAL], [aclocal], [$MISSING aclocal])
29 AC_CHECK_PROGS([AUTOCONF], [autoconf], [$MISSING autoconf])
30 AC_CHECK_PROGS([AUTOHEADER], [autoheader], [$MISSING autoheader])
32 # Figure out what compiler warnings we can enable.
33 # See config/warnings.m4 for details.
35 ACX_PROG_CC_WARNING_OPTS([-W -Wall -Wwrite-strings \
36 -Wmissing-format-attribute], [warn])
37 ACX_PROG_CC_WARNING_OPTS([-Wstrict-prototypes -Wmissing-prototypes \
38 -Wold-style-definition -Wc++-compat], [c_warn])
39 ACX_PROG_CC_WARNING_ALMOST_PEDANTIC([-Wno-long-long])
41 # Only enable with --enable-werror-always until existing warnings are
43 ACX_PROG_CC_WARNINGS_ARE_ERRORS([manual])
45 # Dependency checking.
47 if test "$ENABLE_BUILD_WITH_CXX" = "no"; then
48 ZW_PROG_COMPILER_DEPENDENCIES([CC])
51 AC_COMPILE_IFELSE([[int i;]], [],
52 [AC_MSG_ERROR([C++ compiler missing or inoperational])])
54 ZW_PROG_COMPILER_DEPENDENCIES([CXX])
57 # Checks for header files.
61 # AC_CHECK_HEADERS is repeated to work around apparent autoconf 2.59 bug. If
62 # AC_CHECK_HEADERS comes after the if clause, the last AC_LANG call gets used,
63 # no matter which branch is taken.
64 if test "$ENABLE_BUILD_WITH_CXX" = "no"; then
66 AC_CHECK_HEADERS(locale.h fcntl.h limits.h stddef.h \
67 stdlib.h strings.h string.h sys/file.h unistd.h)
70 AC_CHECK_HEADERS(locale.h fcntl.h limits.h stddef.h \
71 stdlib.h strings.h string.h sys/stat.h sys/file.h unistd.h)
74 # Checks for typedefs, structures, and compiler characteristics.
83 AC_CHECK_TYPE(ptrdiff_t, int)
87 define(libcpp_UNLOCKED_FUNCS, clearerr_unlocked feof_unlocked dnl
88 ferror_unlocked fflush_unlocked fgetc_unlocked fgets_unlocked dnl
89 fileno_unlocked fprintf_unlocked fputc_unlocked fputs_unlocked dnl
90 fread_unlocked fwrite_unlocked getchar_unlocked getc_unlocked dnl
91 putchar_unlocked putc_unlocked)
92 AC_CHECK_FUNCS(libcpp_UNLOCKED_FUNCS)
93 AC_CHECK_DECLS([abort, asprintf, basename(char *), errno, getopt, vasprintf])
94 AC_CHECK_DECLS(m4_split(m4_normalize(libcpp_UNLOCKED_FUNCS)))
96 # Checks for library functions.
100 ZW_GNU_GETTEXT_SISTER_DIR
102 AC_CACHE_CHECK(for uchar, gcc_cv_type_uchar,
104 #include <sys/types.h>
106 [if ((uchar *)0) return 0;
107 if (sizeof(uchar)) return 0;],
108 ac_cv_type_uchar=yes, ac_cv_type_uchar=no)])
109 if test $ac_cv_type_uchar = yes; then
110 AC_DEFINE(HAVE_UCHAR, 1,
111 [Define if <sys/types.h> defines \`uchar'.])
116 # More defines and substitutions.
117 PACKAGE="$PACKAGE_TARNAME"
118 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Define to the name of this package.])
121 if test "x$enable_nls" != xno; then
122 USED_CATALOGS='$(CATALOGS)'
126 AC_SUBST(USED_CATALOGS)
128 AC_ARG_ENABLE(maintainer-mode,
129 [ --enable-maintainer-mode enable rules only needed by maintainers],,
130 enable_maintainer_mode=no)
132 if test "x$enable_maintainer_mode" = xno; then
139 AC_ARG_ENABLE(checking,
140 [ --enable-checking enable expensive run-time checks],,
143 if test $enable_checking != no ; then
144 AC_DEFINE(ENABLE_CHECKING, 1,
145 [Define if you want more run-time sanity checks.])
152 arm*-*-symbianelf* | \
156 i[34567]86-*-darwin* | \
157 i[34567]86-*-solaris2.1[0-9]* | \
158 i[34567]86-w64-mingw* | \
166 sh[123456789lbe]*-*-* | sh-*-*)
167 need_64bit_hwint=yes ;;
169 if test "x$enable_targets" = xall; then
176 need_64bit_hwint=no ;;
179 case $need_64bit_hwint:$ac_cv_sizeof_long in
180 *:8 | no:*) host_wide_int=long ;;
181 *) host_wide_int='long long' ;;
185 AC_DEFINE_UNQUOTED(HOST_WIDE_INT, $host_wide_int,
186 [Define to the widest efficient host integer type at least
187 as wide as the target's size_t type.])
191 AC_TRY_COMPILE([], [asm ("pcmpestri %0, %%xmm0, %%xmm1" : : "i"(0))],
192 [AC_DEFINE([HAVE_SSE4], [1],
193 [Define to 1 if you can assemble SSE4 insns.])])
198 AC_CONFIG_HEADERS(config.h:config.in, [echo timestamp > stamp-h1])
199 AC_CONFIG_FILES(Makefile)