mirror of https://git.ffmpeg.org/ffmpeg.git
configure: Split host and target libc detection
This commit is contained in:
Diego Biurrun
parent
c869fcdeac
commit
2756516466
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@ -1004,6 +1004,10 @@ require_pkg_config(){
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add_extralibs $(get_safe ${pkg}_libs)
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}
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hostcc_e(){
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eval printf '%s\\n' $HOSTCC_E
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}
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hostcc_o(){
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eval printf '%s\\n' $HOSTCC_O
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}
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@ -1015,6 +1019,13 @@ check_host_cc(){
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check_cmd $host_cc $host_cflags "$@" $HOSTCC_C $(hostcc_o $TMPO) $TMPC
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}
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check_host_cpp(){
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log check_host_cpp "$@"
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cat > $TMPC
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log_file $TMPC
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check_cmd $host_cc $HOSTCPPFLAGS $HOSTCFLAGS "$@" $(hostcc_e $TMPO) $TMPC
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}
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check_host_cppflags(){
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log check_host_cppflags "$@"
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check_host_cc "$@" <<EOF && append host_cppflags "$@"
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@ -1030,6 +1041,19 @@ int x;
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EOF
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}
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check_host_cpp_condition(){
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log check_host_cpp_condition "$@"
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header=$1
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condition=$2
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shift 2
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check_host_cpp "$@" <<EOF
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#include <$header>
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#if !($condition)
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#error "unsatisfied condition: $condition"
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#endif
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EOF
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}
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apply(){
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file=$1
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shift
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@ -2073,11 +2097,12 @@ LD_O='-o $@'
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LD_LIB='-l%'
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LD_PATH='-L'
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HOSTCC_C='-c'
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HOSTCC_E='-E -o $@'
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HOSTCC_O='-o $@'
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HOSTLD_O='-o $@'
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host_cflags='-O3 -g'
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host_cppflags='-D_ISOC99_SOURCE -D_XOPEN_SOURCE=600'
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host_cppflags='-D_ISOC99_SOURCE'
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host_libs='-lm'
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host_cflags_filter=echo
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host_ldflags_filter=echo
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@ -3371,46 +3396,53 @@ esac
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# determine libc flavour
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# uclibc defines __GLIBC__, so it needs to be checked before glibc.
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if check_cpp_condition features.h "defined __UCLIBC__"; then
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libc_type=uclibc
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add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
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elif check_cpp_condition features.h "defined __GLIBC__"; then
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libc_type=glibc
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add_cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
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# MinGW headers can be installed on Cygwin, so check for newlib first.
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elif check_cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
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libc_type=newlib
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add_cppflags -U__STRICT_ANSI__
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# MinGW64 is backwards compatible with MinGW32, so check for it first.
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elif check_cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
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libc_type=mingw64
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add_cppflags -U__STRICT_ANSI__
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elif check_cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
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libc_type=mingw32
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check_cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
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(__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
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die "ERROR: MinGW32 runtime version must be >= 3.15."
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add_cppflags -U__STRICT_ANSI__
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elif check_cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
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libc_type=msvcrt
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# The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
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# 0x601 by default unless something else is set by the user.
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# This can easily lead to us detecting functions only present
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# in such new versions and producing binaries requiring windows 7.0.
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# Therefore explicitly set the default to XP unless the user has
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# set something else on the command line.
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check_cpp_condition stdlib.h "defined(_WIN32_WINNT)" || add_cppflags -D_WIN32_WINNT=0x0502
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elif check_cpp_condition stddef.h "defined __KLIBC__"; then
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libc_type=klibc
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elif check_cpp_condition sys/cdefs.h "defined __BIONIC__"; then
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libc_type=bionic
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elif check_cpp_condition sys/brand.h "defined SOLARIS_BRAND_NAME"; then
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libc_type=solaris
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add_cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
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fi
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probe_libc(){
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pfx=$1
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# uclibc defines __GLIBC__, so it needs to be checked before glibc.
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if check_${pfx}cpp_condition features.h "defined __UCLIBC__"; then
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eval ${pfx}libc_type=uclibc
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add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
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elif check_${pfx}cpp_condition features.h "defined __GLIBC__"; then
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eval ${pfx}libc_type=glibc
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add_${pfx}cppflags -D_POSIX_C_SOURCE=200112 -D_XOPEN_SOURCE=600
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# MinGW headers can be installed on Cygwin, so check for newlib first.
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elif check_${pfx}cpp_condition newlib.h "defined _NEWLIB_VERSION"; then
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eval ${pfx}libc_type=newlib
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add_${pfx}cppflags -U__STRICT_ANSI__
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# MinGW64 is backwards compatible with MinGW32, so check for it first.
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elif check_${pfx}cpp_condition _mingw.h "defined __MINGW64_VERSION_MAJOR"; then
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eval ${pfx}libc_type=mingw64
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add_${pfx}cppflags -U__STRICT_ANSI__
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elif check_${pfx}cpp_condition _mingw.h "defined __MINGW32_VERSION"; then
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eval ${pfx}libc_type=mingw32
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check_${pfx}cpp_condition _mingw.h "__MINGW32_MAJOR_VERSION > 3 || \
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(__MINGW32_MAJOR_VERSION == 3 && __MINGW32_MINOR_VERSION >= 15)" ||
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die "ERROR: MinGW32 runtime version must be >= 3.15."
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add_${pfx}cppflags -U__STRICT_ANSI__
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elif check_${pfx}cpp_condition crtversion.h "defined _VC_CRT_MAJOR_VERSION"; then
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eval ${pfx}libc_type=msvcrt
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# The MSVC 2010 headers (Win 7.0 SDK) set _WIN32_WINNT to
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# 0x601 by default unless something else is set by the user.
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# This can easily lead to us detecting functions only present
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# in such new versions and producing binaries requiring windows 7.0.
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# Therefore explicitly set the default to XP unless the user has
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# set something else on the command line.
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check_${pfx}cpp_condition stdlib.h "defined(_WIN32_WINNT)" ||
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add_${pfx}cppflags -D_WIN32_WINNT=0x0502
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elif check_${pfx}cpp_condition stddef.h "defined __KLIBC__"; then
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eval ${pfx}libc_type=klibc
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elif check_${pfx}cpp_condition sys/cdefs.h "defined __BIONIC__"; then
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eval ${pfx}libc_type=bionic
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elif check_${pfx}cpp_condition sys/brand.h "defined SOLARIS_BRAND_NAME"; then
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eval ${pfx}libc_type=solaris
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add_${pfx}cppflags -D__EXTENSIONS__ -D_XOPEN_SOURCE=600
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fi
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}
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probe_libc
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test -n "$libc_type" && enable libc_$libc_type
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probe_libc host_
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test -n "$host_libc_type" && enable host_libc_$host_libc_type
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case $libc_type in
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bionic)
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@ -4154,10 +4186,11 @@ check_deps $CONFIG_LIST \
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echo "install prefix $prefix"
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echo "source path $source_path"
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echo "C compiler $cc"
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echo "C library $libc_type"
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if test "$host_cc" != "$cc"; then
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echo "host C compiler $host_cc"
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echo "host C library $host_libc_type"
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fi
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echo "C library $libc_type"
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echo "ARCH $arch ($cpu)"
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if test "$build_suffix" != ""; then
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echo "build suffix $build_suffix"
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