ObjFW  Check-in [b1fa976eaa]

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Comment:Check for M_PI and define it if it's missing.
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SHA3-256: b1fa976eaabf236852ee8937dd5cff48a76e78902811b15bfb08786705f7a00a
User & Date: js on 2011-06-17 00:29:34
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Context
2011-06-17
00:35
Add -[removeLastItem] and -[removeLastObject]. check-in: 5a127a0804 user: js tags: trunk
00:29
Check for M_PI and define it if it's missing. check-in: b1fa976eaa user: js tags: trunk
2011-06-16
02:33
-[readNBytes:intoBuffer:] & -[writeNBytes:fromBuffer:] take a void* now. check-in: 8440a70457 user: js tags: trunk
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Modified configure.ac from [58f6a32a5a] to [fd2d4b283c].

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		;;
esac

AC_C_BIGENDIAN([
	AC_DEFINE(OF_BIG_ENDIAN, 1, [Whether we are big endian])
])

AC_CHECK_SIZEOF(float)
AC_CHECK_SIZEOF(double)
AS_IF([test x"$ac_cv_sizeof_float" != x"4" -o x"$ac_cv_sizeof_double" != x"8"],
	[AC_MSG_ERROR(
		[Floating point implementation does not conform to IEEE 754!])])

AC_MSG_CHECKING(for floating point endianess)
float_endianess="unknown"
AC_TRY_COMPILE([
	double endianess = 184092775106.859375;
], [
], [
	AS_IF([$EGREP BEndian conftest.$ac_objext >/dev/null], [
		AC_DEFINE(OF_FLOAT_BIG_ENDIAN, 1,
			[Whether floats are big endian])
		float_endianess="big endian"
	], [
		AS_IF([$EGREP naidnEB conftest.$ac_objext >/dev/null], [
			float_endianess="little endian"
		])
	])
])
AC_MSG_RESULT($float_endianess)
AS_IF([test x"$float_endianess" = x"unknown"], [
	AC_MSG_ERROR(
		[Floating point implementation does not conform to IEEE 754!])])

AC_MSG_CHECKING(for SIZE_MAX)
AC_EGREP_CPP(yes, [
	#include <stdint.h>
	#include <limits.h>

	#ifdef SIZE_MAX
	yes








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		;;
esac

AC_C_BIGENDIAN([
	AC_DEFINE(OF_BIG_ENDIAN, 1, [Whether we are big endian])
])




























AC_MSG_CHECKING(for SIZE_MAX)
AC_EGREP_CPP(yes, [
	#include <stdint.h>
	#include <limits.h>

	#ifdef SIZE_MAX
	yes
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		#include <limits.h>

		#ifdef SIZE_T_MAX
		yes
		#endif
	], [
		AC_MSG_RESULT(yes)
		size_max="SIZE_T_MAX"], [

		AC_MSG_RESULT(no)
		size_max="(~(size_t)0)"
	])
	AC_DEFINE_UNQUOTED(SIZE_MAX, $size_max, [Maximum value for size_t])
])












































AC_CHECK_FUNC(asprintf, [
	case "$host" in
		*-psp-*)
			dnl asprintf is broken on the PSP, but snprintf works.
			have_asprintf="no"
			AC_SUBST(ASPRINTF_M, "asprintf.m")








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		#include <limits.h>

		#ifdef SIZE_T_MAX
		yes
		#endif
	], [
		AC_MSG_RESULT(yes)
		size_max="SIZE_T_MAX"
	], [
		AC_MSG_RESULT(no)
		size_max="(~(size_t)0)"
	])
	AC_DEFINE_UNQUOTED(SIZE_MAX, $size_max, [Maximum value for size_t])
])

AC_CHECK_SIZEOF(float)
AC_CHECK_SIZEOF(double)
AS_IF([test x"$ac_cv_sizeof_float" != x"4" -o x"$ac_cv_sizeof_double" != x"8"],
	[AC_MSG_ERROR(
		[Floating point implementation does not conform to IEEE 754!])])

AC_MSG_CHECKING(for floating point endianess)
fp_endianess="unknown"
AC_TRY_COMPILE([
	double endianess = 184092775106.859375;
], [
], [
	AS_IF([$EGREP BEndian conftest.$ac_objext >/dev/null], [
		AC_DEFINE(OF_FLOAT_BIG_ENDIAN, 1,
			[Whether floats are big endian])
		fp_endianess="big endian"
	], [
		AS_IF([$EGREP naidnEB conftest.$ac_objext >/dev/null], [
			fp_endianess="little endian"
		])
	])
])
AC_MSG_RESULT($fp_endianess)
AS_IF([test x"$fp_endianess" = x"unknown"], [
	AC_MSG_ERROR(
		[Floating point implementation does not conform to IEEE 754!])])

AC_CHECK_LIB(m, fmod, LIBS="$LIBS -lm")

AC_MSG_CHECKING(for M_PI)
AC_EGREP_CPP(yes, [
	#include <math.h>

	#ifdef M_PI
	yes
	#endif
], [
	AC_MSG_RESULT(yes)
], [
	AC_MSG_RESULT(no)
	AC_DEFINE(M_PI, 3.141592653589793238462643, [Precalculated Pi])
])

AC_CHECK_FUNC(asprintf, [
	case "$host" in
		*-psp-*)
			dnl asprintf is broken on the PSP, but snprintf works.
			have_asprintf="no"
			AC_SUBST(ASPRINTF_M, "asprintf.m")
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		])
	])
	AC_MSG_RESULT($ac_cv_snprintf_useful_ret)
])
test x"$have_asprintf" != x"yes" -a x"$ac_cv_snprintf_useful_ret" != x"yes" && \
	AC_MSG_ERROR(No asprintf and no snprintf returning required space!)

AC_CHECK_LIB(m, fmod, LIBS="$LIBS -lm")
AC_CHECK_LIB(dl, dlopen, LIBS="$LIBS -ldl")

AC_ARG_ENABLE(threads,
	AS_HELP_STRING([--disable-threads], [disable thread support]))
AS_IF([test x"$enable_threads" != x"no"], [
	case "$host_os" in
	mingw*)








<








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		])
	])
	AC_MSG_RESULT($ac_cv_snprintf_useful_ret)
])
test x"$have_asprintf" != x"yes" -a x"$ac_cv_snprintf_useful_ret" != x"yes" && \
	AC_MSG_ERROR(No asprintf and no snprintf returning required space!)


AC_CHECK_LIB(dl, dlopen, LIBS="$LIBS -ldl")

AC_ARG_ENABLE(threads,
	AS_HELP_STRING([--disable-threads], [disable thread support]))
AS_IF([test x"$enable_threads" != x"no"], [
	case "$host_os" in
	mingw*)
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