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8922e96869
RetroArch/qb/qb.libs.sh
orbea 8922e96869 qb: Add check_platform. 
This allows enabling and disabling features for platforms
more robustly.

Fixes https://github.com/libretro/RetroArch/issues/8777

v2: Fix D3D configure checks.
v3: Cleanup.
v4: Update Makefile.msvc and Makefile.win
2019-06-02 08:48:05 -07:00

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CONFIG_DEFINES=''
INCLUDE_DIRS=''
LIBRARY_DIRS=''
MAKEFILE_DEFINES=''
PKG_CONF_USED=''
ASFLAGS="${ASFLAGS:-}"
CFLAGS="${CFLAGS:-}"
CXXFLAGS="${CXXFLAGS:-}"
LDFLAGS="${LDFLAGS:-}"
PREFIX="${PREFIX:-/usr/local}"
SHARE_DIR="${SHARE_DIR:-${PREFIX}/share}"
# add_define:
# $1 = MAKEFILE or CONFIG
# $2 = define
# $3 = value
add_define()
{ eval "${1}_DEFINES=\"\${${1}_DEFINES} $2=$3\""; }
# add_dirs:
# $1 = INCLUDE or LIBRARY
# $@ = include or library paths
add_dirs()
{ ADD="$1"; LINK="${1%"${1#?}"}"; shift
while [ $# -gt 0 ]; do
eval "${ADD}_DIRS=\"\${${ADD}_DIRS} -${LINK}${1}\""
shift
done
eval "${ADD}_DIRS=\"\${${ADD}_DIRS# }\""
}
# check_compiler:
# $1 = language
# $2 = function in lib
check_compiler()
{ if [ "$1" = cxx ]; then
COMPILER="$CXX"
FLAGS="$CXXFLAGS"
TEMP_CODE="$TEMP_CXX"
TEST_C="extern \"C\" { void $2(void); } int main() { $2(); }"
else
COMPILER="$CC"
FLAGS="$CFLAGS"
TEMP_CODE="$TEMP_C"
TEST_C="void $2(void); int main(void) { $2(); return 0; }"
fi
}
# check_enabled:
# $1 = HAVE_$1 [Disabled feature]
# $2 = USER_$2 [Enabled feature]
# $3 = lib
# $4 = feature
# $5 = enable lib when true [checked only if non-empty]
check_enabled()
{ tmpvar="$(eval "printf %s \"\$HAVE_$1\"")"
setval="$(eval "printf %s \"\$HAVE_$2\"")"
if [ "$tmpvar" != 'no' ]; then
if [ "$setval" != 'no' ] && [ "${5:-}" = 'true' ]; then
eval "HAVE_$2=yes"
fi
return 0
fi
tmpval="$(eval "printf %s \"\$USER_$2\"")"
if [ "$tmpval" != 'yes' ]; then
if [ "$setval" != 'no' ]; then
eval "HAVE_$2=no"
if [ "${5:-}" != 'true' ]; then
die : "Notice: $4 disabled, $3 support will also be disabled."
fi
fi
return 0
fi
die 1 "Error: $4 disabled and forced to build with $3 support."
}
# check_platform:
# $1 = OS
# $2 = HAVE_$2
# $3 = feature
# $4 = enable feature when true [checked only if non-empty]
check_platform()
{ tmpval="$(eval "printf %s \"\$HAVE_$2\"")"
[ "$tmpval" = 'no' ] && return 0
setval="$(eval "printf %s \"\$USER_$2\"")"
if [ "$setval" = 'yes' ]; then
if { [ "$1" != "$OS" ] && [ "${4:-}" = 'true' ]; } ||
{ [ "$1" = "$OS" ] &&
[ "${4:-}" != 'true' ]; }; then
die 1 "Error: $3 not supported for $OS."
fi
elif [ "$1" = "$OS" ]; then
if [ "${4:-}" = 'true' ]; then
eval "HAVE_$2=yes"
else
eval "HAVE_$2=no"
fi
elif [ "${4:-}" = 'true' ]; then
eval "HAVE_$2="
fi
}
# check_lib:
# Compiles a simple test program to check if a library is available.
# $1 = language
# $2 = HAVE_$2
# $3 = lib
# $4 = function in lib [checked only if non-empty]
# $5 = extralibs [checked only if non-empty]
# $6 = headers [checked only if non-empty]
# $7 = include directory [checked only if non-empty]
# $8 = critical error message [checked only if non-empty]
check_lib()
{ tmpval="$(eval "printf %s \"\$HAVE_$2\"")"
[ "$tmpval" = 'no' ] && return 0
check_compiler "$1" "$4"
if [ "$4" ]; then
MSG="Checking function $4 in"
if [ "$6" ]; then
printf %s\\n "$6" "int main(void) { void *p = (void*)$4; return 0; }" > "$TEMP_CODE"
else
printf %s\\n "$TEST_C" > "$TEMP_CODE"
fi
else
MSG='Checking existence of'
printf %s\\n 'int main(void) { return 0; }' > "$TEMP_CODE"
fi
val="$2"
lib="${3% }"
include="${7:-}"
error="${8:-}"
answer='no'
printf %s "$MSG $lib"
eval "set -- $INCLUDE_DIRS $LIBRARY_DIRS $5 $FLAGS $LDFLAGS $lib"
"$COMPILER" -o "$TEMP_EXE" "$TEMP_CODE" "$@" >>config.log 2>&1 && answer='yes'
printf %s\\n " ... $answer"
if [ "$answer" = 'yes' ] && [ "$include" ]; then
answer='no'
eval "set -- $INCLUDES"
for dir do
[ "$answer" = 'yes' ] && break
printf %s "Checking existence of /$dir/$include"
if [ -d "/$dir/$include" ]; then
eval "${val}_CFLAGS=\"-I/$dir/$include\""
answer='yes'
fi
printf %s\\n " ... $answer"
done
fi
eval "HAVE_$val=\"$answer\""
rm -f -- "$TEMP_CODE" "$TEMP_EXE"
if [ "$answer" = 'no' ]; then
[ "$error" ] && die 1 "$error"
setval="$(eval "printf %s \"\$USER_$val\"")"
if [ "$setval" = 'yes' ]; then
die 1 "Forced to build with library $lib, but cannot locate. Exiting ..."
fi
else
eval "${val}_LIBS=\"$lib\""
PKG_CONF_USED="$PKG_CONF_USED $val"
fi
return 0
}
# check_pkgconf:
# If available uses $PKG_CONF_PATH to find a library.
# $1 = HAVE_$1
# $2 = package ['package' or 'package package1 package2', $1 = name]
# $3 = version [checked only if non-empty]
# $4 = critical error message [checked only if non-empty]
# $5 = force check_lib when true [checked only if non-empty, set by check_val]
check_pkgconf()
{ tmpval="$(eval "printf %s \"\$HAVE_$1\"")"
eval "TMP_$1=\$tmpval"
[ "$tmpval" = 'no' ] && return 0
ECHOBUF=''
[ "${3:-}" ] && ECHOBUF=" >= ${3##* }"
pkg="${2%% *}"
MSG='Checking presence of package'
[ "$PKG_CONF_PATH" = "none" ] && {
eval "HAVE_$1=no"
eval "${1#HAVE_}_VERSION=0.0"
printf %s\\n "$MSG $pkg$ECHOBUF ... no"
return 0
}
val="$1"
ver="${3:-0.0}"
err="${4:-}"
lib="${5:-}"
answer='no'
version='no'
eval "set -- ${2#* }"
for pkgnam do
[ "$answer" = 'yes' ] && break
printf %s "$MSG $pkgnam$ECHOBUF"
eval "set -- $ver"
for pkgver do
if "$PKG_CONF_PATH" --atleast-version="$pkgver" "$pkgnam"; then
answer='yes'
version="$("$PKG_CONF_PATH" --modversion "$pkgnam")"
eval "${val}_CFLAGS=\"$("$PKG_CONF_PATH" --cflags "$pkgnam")\""
eval "${val}_LIBS=\"$("$PKG_CONF_PATH" --libs "$pkgnam")\""
eval "${val}_VERSION=\"$pkgver\""
break
fi
done
printf %s\\n " ... $version"
done
eval "HAVE_$val=\"$answer\""
if [ "$answer" = 'no' ]; then
[ "$lib" != 'true' ] || return 0
[ "$err" ] && die 1 "$err"
setval="$(eval "printf %s \"\$USER_$val\"")"
if [ "$setval" = 'yes' ]; then
die 1 "Forced to build with package $pkg, but cannot locate. Exiting ..."
fi
else
PKG_CONF_USED="$PKG_CONF_USED $val"
fi
}
# check_header:
# $1 = HAVE_$1
# $@ = header files
check_header()
{ tmpval="$(eval "printf %s \"\$HAVE_$1\"")"
[ "$tmpval" = 'no' ] && return 0
rm -f -- "$TEMP_C"
val="$1"
header="$2"
shift
for head do
CHECKHEADER="$head"
printf %s\\n "#include <$head>" >> "$TEMP_C"
done
printf %s\\n "int main(void) { return 0; }" >> "$TEMP_C"
answer='no'
printf %s "Checking presence of header file $CHECKHEADER"
eval "set -- $CFLAGS $INCLUDE_DIRS"
"$CC" -o "$TEMP_EXE" "$TEMP_C" "$@" >>config.log 2>&1 && answer='yes'
eval "HAVE_$val=\"$answer\""
printf %s\\n " ... $answer"
rm -f -- "$TEMP_C" "$TEMP_EXE"
setval="$(eval "printf %s \"\$USER_$val\"")"
if [ "$setval" = 'yes' ] && [ "$answer" = 'no' ]; then
die 1 "Build assumed that $header exists, but cannot locate. Exiting ..."
fi
}
# check_macro:
# $1 = HAVE_$1
# $2 = macro name
# $3 = header name [included only if non-empty]
check_macro()
{ tmpval="$(eval "printf %s \"\$HAVE_$1\"")"
[ "$tmpval" = 'no' ] && return 0
header_include=''
ECHOBUF=''
if [ "${3:-}" ]; then
header_include="#include <$3>"
ECHOBUF=" in $3"
fi
cat << EOF > "$TEMP_C"
$header_include
#ifndef $2
#error $2 is not defined
#endif
int main(void) { return 0; }
EOF
answer='no'
val="$1"
macro="$2"
printf %s "Checking presence of predefined macro $macro$ECHOBUF"
eval "set -- $CFLAGS $INCLUDE_DIRS"
"$CC" -o "$TEMP_EXE" "$TEMP_C" "$@" >>config.log 2>&1 && answer='yes'
eval "HAVE_$val=\"$answer\""
printf %s\\n " ... $answer"
rm -f -- "$TEMP_C" "$TEMP_EXE"
setval="$(eval "printf %s \"\$USER_$val\"")"
if [ "$setval" = 'yes' ] && [ "$answer" = 'no' ]; then
die 1 "Build assumed that $macro is defined, but it's not. Exiting ..."
fi
}
# check_switch:
# $1 = language
# $2 = HAVE_$2
# $3 = switch
# $4 = critical error message [checked only if non-empty]
check_switch()
{ check_compiler "$1" ''
printf %s\\n 'int main(void) { return 0; }' > "$TEMP_CODE"
answer='no'
printf %s "Checking for availability of switch $3 in $COMPILER"
"$COMPILER" -o "$TEMP_EXE" "$TEMP_CODE" "$3" >>config.log 2>&1 && answer='yes'
eval "HAVE_$2=\"$answer\""
printf %s\\n " ... $answer"
rm -f -- "$TEMP_CODE" "$TEMP_EXE"
if [ "$answer" = 'no' ] && [ "${4:-}" ]; then
die 1 "$4"
fi
}
# check_val:
# Uses check_pkgconf to find a library and falls back to check_lib if false.
# $1 = language
# $2 = HAVE_$2
# $3 = lib
# $4 = include directory [checked only if non-empty]
# $5 = package
# $6 = version [checked only if non-empty]
# $7 = critical error message [checked only if non-empty]
# $8 = force check_lib when true [checked only if non-empty]
check_val()
{ check_pkgconf "$2" "$5" "${6:-}" "${7:-}" "${8:-}"
[ "$PKG_CONF_PATH" = "none" ] || [ "${8:-}" = true ] || return 0
tmpval="$(eval "printf %s \"\$HAVE_$2\"")"
oldval="$(eval "printf %s \"\$TMP_$2\"")"
if [ "$tmpval" = 'no' ] && [ "$oldval" != 'no' ]; then
eval "HAVE_$2=auto"
check_lib "$1" "$2" "$3" '' '' '' "${4:-}" "${7:-}"
fi
}
create_config_header()
{ outfile="$1"; shift
printf %s\\n "Creating config header: $outfile"
name="$(printf %s "QB_${outfile}__" | tr '.[a-z]' '_[A-Z]')"
{ printf %s\\n "#ifndef $name" "#define $name" '' \
"#define PACKAGE_NAME \"$PACKAGE_NAME\""
while [ $# -gt 0 ]; do
case "$(eval "printf %s \"\$HAVE_$1\"")" in
'yes')
n='0'
c89_build="$(eval "printf %s \"\$C89_$1\"")"
cxx_build="$(eval "printf %s \"\$CXX_$1\"")"
if [ "$c89_build" = 'no' ]; then
n=$(($n+1))
printf %s\\n '#if __cplusplus || __STDC_VERSION__ >= 199901L'
fi
if [ "$cxx_build" = 'no' ]; then
n=$(($n+1))
printf %s\\n '#ifndef CXX_BUILD'
fi
printf %s\\n "#define HAVE_$1 1"
while [ $n != '0' ]; do
n=$(($n-1))
printf %s\\n '#endif'
done
;;
'no') printf %s\\n "/* #undef HAVE_$1 */";;
esac
shift
done
eval "set -- $CONFIG_DEFINES"
for VAR do
printf %s\\n "#define ${VAR%%=*} ${VAR#*=}"
done
printf %s\\n '#endif'
} > "$outfile"
}
create_config_make()
{ outfile="$1"; shift
printf %s\\n "Creating make config: $outfile"
{ if [ "$HAVE_CC" = 'yes' ]; then
printf %s\\n "CC = $CC"
if [ "${CFLAGS}" ]; then
printf %s\\n "CFLAGS = $CFLAGS"
fi
fi
if [ "$HAVE_CXX" = 'yes' ]; then
printf %s\\n "CXX = $CXX"
if [ "${CXXFLAGS}" ]; then
printf %s\\n "CXXFLAGS = $CXXFLAGS"
fi
fi
printf %s\\n "WINDRES = $WINDRES" \
"MOC = $MOC" \
"ASFLAGS = $ASFLAGS" \
"LDFLAGS = $LDFLAGS" \
"INCLUDE_DIRS = $INCLUDE_DIRS" \
"LIBRARY_DIRS = $LIBRARY_DIRS" \
"PACKAGE_NAME = $PACKAGE_NAME" \
"BUILD = $BUILD" \
"PREFIX = $PREFIX"
while [ $# -gt 0 ]; do
case "$(eval "printf %s \"\$HAVE_$1\"")" in
'yes')
n='0'
c89_build="C89_$1"
cxx_build="CXX_$1"
for build in "$c89_build" "$cxx_build"; do
if [ "$(eval "printf %s \"\$$build\"")" = 'no' ]; then
n=$(($n+1))
printf %s\\n "ifneq (\$(${build%%_*}_BUILD),1)"
fi
done
printf %s\\n "HAVE_$1 = 1"
while [ $n != '0' ]; do
n=$(($n-1))
printf %s\\n 'endif'
done
;;
'no') printf %s\\n "HAVE_$1 = 0";;
esac
case "$PKG_CONF_USED" in
*$1*)
FLAG="$(eval "printf %s \"\$$1_CFLAGS\"")"
LIBS="$(eval "printf %s \"\$$1_LIBS\"")"
[ "${FLAG}" ] && printf %s\\n "$1_CFLAGS = ${FLAG%"${FLAG##*[! ]}"}"
[ "${LIBS}" ] && printf %s\\n "$1_LIBS = ${LIBS%"${LIBS##*[! ]}"}"
;;
esac
shift
done
eval "set -- $MAKEFILE_DEFINES"
for VAR do
printf %s\\n "${VAR%%=*} = ${VAR#*=}"
done
} > "$outfile"
}
. qb/config.libs.sh
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