mirror of
https://github.com/netwide-assembler/nasm.git
synced 2024-11-21 03:14:19 +08:00
c13d31a907
Some platforms apparently feel -std=c99, which defines __STRICT_ANSI__, should also hide a bunch of function prototypes. This rather sucks. At least try to deal with it. MinGW and DJGPP both have this problem, in particular.
145 lines
3.7 KiB
Plaintext
145 lines
3.7 KiB
Plaintext
dnl Process this file with autoconf 2.59 or later to produce
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dnl a configure script.
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AC_PREREQ(2.59)
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AC_INIT(config.h.in)
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AC_CONFIG_HEADERS(config.h)
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dnl Check for broken VPATH handling on older NetBSD makes.
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AC_DEFUN(AC_PROG_MAKE_VPATHOK,
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[AC_MSG_CHECKING(whether ${MAKE-make} has sane VPATH handling)
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set dummy ${MAKE-make}; ac_make=`echo "[$]2" | sed 'y%./+-%__p_%'`
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AC_CACHE_VAL(ac_cv_prog_make_vpathok,
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[mkdir conftestdir
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cat > conftestdir/conftestmake <<\EOF
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VPATH = ..
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conftestfoo: conftestbar
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@echo ac_make2temp=ok
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conftestbar: conftestbaz
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@echo ac_maketemp=broken
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@touch conftestbar
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EOF
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echo > conftestbaz # these two lines need to be...
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echo > conftestbar # ... in this order not the other
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changequote(, )dnl
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unset ac_maketemp
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unset ac_make2temp
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# GNU make sometimes prints "make[1]: Entering...", which would confuse us.
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eval `cd conftestdir; ${MAKE-make} -f conftestmake 2>/dev/null | grep temp=`
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changequote([, ])dnl
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if test -n "$ac_maketemp"; then
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ac_cv_prog_make_vpathok=no
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else
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if test -n "$ac_make2temp"; then
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ac_cv_prog_make_vpathok=yes
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else
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ac_cv_prog_make_vpathok=no
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fi
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fi
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rm -rf conftestdir
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rm -f conftestbar conftestbaz])dnl
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if test $ac_cv_prog_make_vpathok = yes; then
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AC_MSG_RESULT(yes)
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else
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AC_MSG_RESULT(no)
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fi
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])
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AC_PREFIX_PROGRAM(nasm)
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dnl Checks for programs.
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dnl Consider AC_USE_SYSTEM_EXTENSIONS if autoconf 2.61 is OK in the future
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AC_GNU_SOURCE
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AC_ISC_POSIX
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AC_MINIX
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AC_PROG_CC
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AC_PROG_LN_S
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AC_PROG_MAKE_SET
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if test -f nasm.c; then
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# we're building in the source dir, so we don't need this check at all
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ac_cv_prog_make_vpathok=yes
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else
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AC_PROG_MAKE_VPATHOK
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fi
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AC_PROG_INSTALL
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dnl If we have gcc, add appropriate options
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PA_ADD_CFLAGS([-W])
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PA_ADD_CFLAGS([-Wall])
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PA_ADD_CFLAGS([-std=c99])
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PA_ADD_CFLAGS([-pedantic])
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dnl Look for "nroff" or "groff"
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AC_CHECK_PROGS(NROFF, nroff, echo)
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AC_SUBST(NROFF)
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dnl Checks for header files.
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AC_HEADER_STDC
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if test $ac_cv_header_stdc = no; then
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AC_MSG_ERROR([NASM requires ANSI C header files to compile])
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fi
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AC_CHECK_HEADERS(limits.h)
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if test $ac_cv_header_limits_h = no; then
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AC_MSG_ERROR([NASM requires '<limits.h>' to compile])
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fi
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dnl Check for <inttypes.h> or add a substitute version
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AC_CHECK_HEADERS(inttypes.h, , CFLAGS="$CFLAGS -I\$(top_srcdir)/inttypes")
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dnl The standard header for str*casecmp is <strings.h>
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AC_CHECK_HEADERS(strings.h)
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dnl Look for <stdbool.h>
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AC_CHECK_HEADERS(stdbool.h)
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dnl Checks for typedefs, structures, and compiler characteristics.
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AC_C_CONST
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AC_TYPE_SIZE_T
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dnl Checks for library functions.
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AC_SUBST(XOBJS)
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AC_CHECK_FUNCS(strcspn, ,
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AC_MSG_ERROR([NASM requires ANSI C (specifically, "strcspn")]))
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AC_CHECK_FUNCS(strspn, ,
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AC_MSG_ERROR([NASM requires ANSI C (specifically, "strspn")]))
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missing=true
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AC_CHECK_FUNCS([vsnprintf _vsnprintf], missing=false)
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if $missing; then
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XOBJS="$XOBJS lib/vsnprintf.o"
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fi
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missing=true
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AC_CHECK_FUNCS([snprintf _snprintf], missing=false)
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if $missing; then
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XOBJS="$XOBJS lib/snprintf.o"
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fi
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AC_CHECK_FUNCS(strcasecmp stricmp)
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AC_CHECK_FUNCS(strncasecmp strnicmp)
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AC_CHECK_FUNCS(strsep)
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AC_CHECK_FUNCS(getuid)
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AC_CHECK_FUNCS(getgid)
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dnl Check for functions that might not be declared in the headers for
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dnl various idiotic reasons (mostly because of library authors
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dnl abusing the meaning of __STRICT_ANSI__)
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AC_CHECK_DECLS(strcasecmp)
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AC_CHECK_DECLS(stricmp)
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AC_CHECK_DECLS(strncasecmp)
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AC_CHECK_DECLS(strnicmp)
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AC_CHECK_DECLS(strsep)
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if test $ac_cv_prog_make_vpathok = no; then
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echo Copying generated srcs into build directory to compensate for VPATH breakage
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for file in macros.c insnsa.c insnsd.c insnsn.c insnsi.h version.h version.mac; do
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if test ! -f $file; then cp -p ${srcdir}/${file} .; fi
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done
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fi
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AC_OUTPUT_COMMANDS([mkdir -p output])
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AC_OUTPUT(Makefile rdoff/Makefile doc/Makefile)
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