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Diffstat (limited to 'argp-standalone/configure.ac')
-rw-r--r-- | argp-standalone/configure.ac | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/argp-standalone/configure.ac b/argp-standalone/configure.ac new file mode 100644 index 000000000..fe54d5ac9 --- /dev/null +++ b/argp-standalone/configure.ac @@ -0,0 +1,100 @@ +dnl Process this file with autoconf to produce a configure script. + +dnl This configure.ac is only for building a standalone argp library. +AC_INIT([argp], [standalone-1.3]) +AC_PREREQ(2.54) +AC_CONFIG_SRCDIR([argp-ba.c]) +# Needed to stop autoconf from looking for files in parent directories. +AC_CONFIG_AUX_DIR([.]) + +AM_INIT_AUTOMAKE +AM_CONFIG_HEADER(config.h) + +# GNU libc defaults to supplying the ISO C library functions only. The +# _GNU_SOURCE define enables these extensions, in particular we want +# errno.h to declare program_invocation_name. Enable it on all +# systems; no problems have been reported with it so far. +AC_GNU_SOURCE + +# Checks for programs. +AC_PROG_CC +AC_PROG_MAKE_SET +AC_PROG_RANLIB +AM_PROG_CC_STDC + +if test "x$am_cv_prog_cc_stdc" = xno ; then + AC_ERROR([the C compiler doesn't handle ANSI-C]) +fi + +# Checks for libraries. + +# Checks for header files. +AC_HEADER_STDC +AC_CHECK_HEADERS(limits.h malloc.h unistd.h sysexits.h stdarg.h) + +# Checks for typedefs, structures, and compiler characteristics. +AC_C_CONST +AC_C_INLINE +AC_TYPE_SIZE_T + +LSH_GCC_ATTRIBUTES + +# Checks for library functions. +AC_FUNC_ALLOCA +AC_FUNC_VPRINTF +AC_CHECK_FUNCS(strerror sleep getpid snprintf) + +AC_REPLACE_FUNCS(mempcpy strndup strchrnul strcasecmp vsnprintf) + +dnl ARGP_CHECK_FUNC(includes, function-call [, if-found [, if-not-found]]) +AC_DEFUN([ARGP_CHECK_FUNC], + [AS_VAR_PUSHDEF([ac_func], m4_substr([$2], 0, m4_index([$2], [(]))) + AS_VAR_PUSHDEF([ac_var], [ac_cv_func_call_]ac_func) + AH_TEMPLATE(AS_TR_CPP(HAVE_[]ac_func), + [Define to 1 if you have the `]ac_func[' function.]) + AC_CACHE_CHECK([for $2], ac_var, + [AC_TRY_LINK([$1], [$2], + [AS_VAR_SET(ac_var, yes)], + [AS_VAR_SET(ac_var, no)])]) + if test AS_VAR_GET(ac_var) = yes ; then + ifelse([$3],, + [AC_DEFINE_UNQUOTED(AS_TR_CPP(HAVE_[]ac_func))], + [$3 +]) + else + ifelse([$4],, true, [$4]) + fi + AS_VAR_POPDEF([ac_var]) + AS_VAR_POPDEF([ac_func]) + ]) + +# At least on freebsd, putc_unlocked is a macro, so the standard +# AC_CHECK_FUNCS doesn't work well. +ARGP_CHECK_FUNC([#include <stdio.h>], [putc_unlocked('x', stdout)]) + +AC_CHECK_FUNCS(flockfile) +AC_CHECK_FUNCS(fputs_unlocked fwrite_unlocked) + +# Used only by argp-test.c, so don't use AC_REPLACE_FUNCS. +AC_CHECK_FUNCS(strdup asprintf) + +AC_CHECK_DECLS([program_invocation_name, program_invocation_short_name], + [], [], [[#include <errno.h>]]) + +# Set these flags *last*, or else the test programs won't compile +if test x$GCC = xyes ; then + # Using -ggdb3 makes (some versions of) Redhat's gcc-2.96 dump core + if "$CC" --version | grep '^2\.96$' 1>/dev/null 2>&1; then + true + else + CFLAGS="$CFLAGS -ggdb3" + fi + CFLAGS="$CFLAGS -Wall -W \ + -Wmissing-prototypes -Wmissing-declarations -Wstrict-prototypes \ + -Waggregate-return \ + -Wpointer-arith -Wbad-function-cast -Wnested-externs" +fi + +CPPFLAGS="$CPPFLAGS -I$srcdir" + +AC_OUTPUT(Makefile) |