ObjFW  Diff

				AC_SUBST(AMIGA_LIB_LDFLAGS, $t)
			])

			AC_SUBST(LIBBASES_M, libbases.m)
		])

		enable_shared="no"

		;;
	*-msdosdjgpp*)
		enable_shared="no"
		enable_threads="no"
		enable_sockets="no"
		;;
	*-*-mingw*)

	dnl Hack to make configure find these on DOS.
	: ${AR:=ar.exe}
	: ${GREP:=grep.exe}
	: ${RANLIB:=ranlib.exe}
])

AC_LANG([Objective C])
case "$host_os" in
	morphos*)
		dnl Don't use clang on MorphOS - it does not support baserel,
		dnl which is required for the .library.
		potential_compilers="gcc"
		;;
	*)
		potential_compilers="clang egcc gcc"
		;;
esac
AC_PROG_OBJC($potential_compilers)
AC_PROG_OBJCPP
AC_PROG_LN_S
AC_PROG_INSTALL
AC_PROG_EGREP

BUILDSYS_CHECK_IOS

AC_ARG_ENABLE(shared,
	AS_HELP_STRING([--disable-shared], [do not build shared library]))
AS_IF([test x"$enable_shared" != x"no"], [
	BUILDSYS_SHARED_LIB
	AC_SUBST(OBJFW_SHARED_LIB, "${LIB_PREFIX}objfw${LIB_SUFFIX}")
	AC_SUBST(EXCEPTIONS_LIB_A, "exceptions.lib.a")

	AC_SUBST(FORWARDING_LIB_A, "forwarding.lib.a")

	AC_SUBST(LOOKUP_ASM_LIB_A, "lookup-asm.lib.a")


	BUILDSYS_FRAMEWORK([
		AC_SUBST(OBJFW_FRAMEWORK, "ObjFW.framework")
		build_framework="yes"
	])
], [
	AC_DEFINE(OF_NO_SHARED, 1, [Whether no shared library was built])

	TESTS_LIBS="-L../src/runtime -L../src/runtime/linklib $TESTS_LIBS"
	TESTS_LIBS="-L../src -lobjfw $TESTS_LIBS"
])

AC_ARG_ENABLE(amiga-lib,
	AS_HELP_STRING([--disable-amiga-lib], [do not build Amiga library]))
AS_IF([test x"$supports_amiga_lib" != x"yes"], [enable_amiga_lib="no"])
AS_IF([test x"$enable_amiga_lib" != x"no"], [
	AC_SUBST(OBJFW_STATIC_LIB, "libobjfw.a")
	AC_SUBST(EXCEPTIONS_A, "exceptions.a")
	AC_SUBST(FORWARDING_A, "forwarding.a")
	AC_SUBST(LOOKUP_ASM_AMIGALIB_A, "lookup-asm.amigalib.a")
])

AC_ARG_ENABLE(static, AS_HELP_STRING([--enable-static], [build static library]))
AS_IF([test x"$enable_shared" = x"no" -a x"$enable_amiga_lib" = x"no"], [
	enable_static="yes"
])
AS_IF([test x"$enable_static" = x"yes"], [
	AC_SUBST(OBJFW_STATIC_LIB, "libobjfw.a")
	AC_SUBST(EXCEPTIONS_A, "exceptions.a")

	AC_SUBST(FORWARDING_A, "forwarding.a")

	AC_SUBST(LOOKUP_ASM_A, "lookup-asm.a")

])

AC_DEFINE_UNQUOTED(PLUGIN_SUFFIX, "$PLUGIN_SUFFIX", [Suffix for plugins])
AS_IF([test x"$enable_files" != x"no" -a x"$PLUGIN_SUFFIX" != x""], [
	AC_SUBST(USE_SRCS_PLUGINS, '${SRCS_PLUGINS}')
	AC_SUBST(TESTPLUGIN, "plugin")
	AC_DEFINE(OF_HAVE_PLUGINS, 1, [Whether we have plugin support])

			[disable compiler thread local storage]))

	case "$host" in
		aarch64*-*-android*)
			# Compiler TLS is broken on AArch64 Android with Clang
			enable_compiler_tls="no"
			;;
		m68k-*-amigaos* | powerpc-*-amigaos*)
			# Compiler TLS is broken on AmigaOS
			enable_compiler_tls="no"
			;;
		*-*-morphos*)
			# Compiler TLS needs helpers that we don't want in the
			# .library
			enable_compiler_tls="no"
	esac

	AS_IF([test x"$enable_compiler_tls" != x"no"], [
		AC_CHECK_HEADER(threads.h, [
			AC_DEFINE(OF_HAVE_THREADS_H, 1,
				[Whether we have threads.h])
		])

			[Whether strerror_r returns char *])
	])
])

AC_CHECK_HEADERS(sys/utsname.h)
AC_CHECK_FUNCS(uname)





AC_CHECK_FUNC(pipe, [
	AC_DEFINE(OF_HAVE_PIPE, 1, [Whether we have pipe()])
])



AC_ARG_ENABLE(sockets,
	AS_HELP_STRING([--disable-sockets], [disable socket support]))
AS_IF([test x"$enable_sockets" != x"no"], [
	AC_DEFINE(OF_HAVE_SOCKETS, 1, [Whether we have sockets])
	AC_SUBST(USE_SRCS_SOCKETS, '${SRCS_SOCKETS}')

		AC_MSG_RESULT(no)
	])
])
CHECK_BUILTIN_BSWAP(16)
CHECK_BUILTIN_BSWAP(32)
CHECK_BUILTIN_BSWAP(64)

case "$host_os" in
	darwin*)
		AC_MSG_CHECKING(whether we are compiling for macOS)
		AC_EGREP_CPP(egrep_cpp_yes, [
			#include <TargetConditionals.h>

			#if defined(TARGET_OS_OSX) && TARGET_OS_OSX
			egrep_cpp_yes
			#endif
		], [
			AC_MSG_RESULT(yes)
			have_processes="yes"
		], [
			AC_MSG_RESULT(no)
			have_processes="no"
		])
		;;
	mingw*)
		have_processes="yes"
		;;
	msdosdjgpp*)
		have_processes="no"
		;;
	*)
		AC_HEADER_SYS_WAIT
		AC_CHECK_FUNCS(kill)

		AC_CHECK_FUNCS(posix_spawnp, [