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configure: automatically detect pkg-config to use, like CC #658

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75 changes: 42 additions & 33 deletions configure
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Original file line number Diff line number Diff line change
Expand Up @@ -189,6 +189,27 @@ else
echo "Using compiler $CC"
fi

# pkg-config is required to know dependencies for static linking.
if [ -z "$PKG_CONFIG" ]; then
printf "Looking for pkg-config... "
for b in $TARGET- ""; do
for pkg_config in pkg-config pkgconf; do
if type $b$pkg_config >/dev/null 2>&1; then
PKG_CONFIG=$b$pkg_config
echo "$PKG_CONFIG"
break
fi
done
[ -n "$PKG_CONFIG" ] && break
done
if [ -z "$PKG_CONFIG" ]; then
echo "not found, exiting."
exit 1
fi
else
echo "Using pkg-config tool $PKG_CONFIG"
fi

[ -z "$DEBUG" ] && DEBUG=yes

echo "CC = $CC" >>$CONFIG_MK
Expand Down Expand Up @@ -643,61 +664,49 @@ else
BUILD_API_DOCS_VALUE=no
fi

#
# pkg-config is required to know dependencies for static linking.
#
printf "Checking for pkg-config ... "
PKGCONFIG_BIN=$(_which pkg-config)
if [ -z "$PKGCONFIG_BIN" ]; then
echo "not found, exiting."
exit 1
else
echo yes
fi

#
# libarchive with pkg-config support is required.
#
LIBARCHIVE_REQVER=3.3.3

printf "Checking for libarchive >= ${LIBARCHIVE_REQVER} via pkg-config ... "
if ! pkg-config --atleast-version=${LIBARCHIVE_REQVER} libarchive; then
if ! $PKG_CONFIG --atleast-version=${LIBARCHIVE_REQVER} libarchive; then
echo "libarchive.pc file not found, exiting."
exit 1
else
echo "found version $(pkg-config --modversion libarchive)."
echo "CFLAGS += $(pkg-config --cflags libarchive)" >>$CONFIG_MK
echo "LDFLAGS += $(pkg-config --libs libarchive)" >>$CONFIG_MK
echo "STATIC_LIBS += $(pkg-config --libs --static libarchive)" \
echo "found version $($PKG_CONFIG --modversion libarchive)."
echo "CFLAGS += $($PKG_CONFIG --cflags libarchive)" >>$CONFIG_MK
echo "LDFLAGS += $($PKG_CONFIG --libs libarchive)" >>$CONFIG_MK
echo "STATIC_LIBS += $($PKG_CONFIG --libs --static libarchive)" \
>>$CONFIG_MK
fi

#
# libssl with pkg-config support is required.
#
printf "Checking for libssl via pkg-config ... "
if pkg-config --exists 'libssl' && ! pkg-config --exists libtls ; then
echo "found OpenSSL version $(pkg-config --modversion libssl)."
elif pkg-config --exists libssl libtls; then
echo "found LibreSSL version $(pkg-config --modversion libssl)."
if $PKG_CONFIG --exists 'libssl' && ! $PKG_CONFIG --exists libtls ; then
echo "found OpenSSL version $($PKG_CONFIG --modversion libssl)."
elif $PKG_CONFIG --exists libssl libtls; then
echo "found LibreSSL version $($PKG_CONFIG --modversion libssl)."
else
echo "libssl.pc file not found or incompatible version detected, exiting."
exit 1
fi
echo "CFLAGS += $(pkg-config --cflags libssl)" >>$CONFIG_MK
echo "LDFLAGS += $(pkg-config --libs libssl)" >>$CONFIG_MK
echo "STATIC_LIBS += $(pkg-config --libs --static libssl)" \
echo "CFLAGS += $($PKG_CONFIG --cflags libssl)" >>$CONFIG_MK
echo "LDFLAGS += $($PKG_CONFIG --libs libssl)" >>$CONFIG_MK
echo "STATIC_LIBS += $($PKG_CONFIG --libs --static libssl)" \
>>$CONFIG_MK

#
# zlib is required.
#
printf "Checking for zlib via pkg-config ... "
if pkg-config --exists 'zlib'; then
echo "found zlib version $(pkg-config --modversion zlib)."
echo "CFLAGS += $(pkg-config --cflags zlib)" >>$CONFIG_MK
echo "LDFLAGS += $(pkg-config --libs zlib)" >>$CONFIG_MK
echo "STATIC_LIBS += $(pkg-config --libs --static zlib)" \
if $PKG_CONFIG --exists 'zlib'; then
echo "found zlib version $($PKG_CONFIG --modversion zlib)."
echo "CFLAGS += $($PKG_CONFIG --cflags zlib)" >>$CONFIG_MK
echo "LDFLAGS += $($PKG_CONFIG --libs zlib)" >>$CONFIG_MK
echo "STATIC_LIBS += $($PKG_CONFIG --libs --static zlib)" \
>>$CONFIG_MK
else
echo "no."
Expand Down Expand Up @@ -745,13 +754,13 @@ fi
#
if [ "$BUILD_TESTS" = "yes" ]; then
printf "Checking for ATF via pkg-config ... "
if ! pkg-config --atleast-version=0.15 atf-c; then
if ! $PKG_CONFIG --atleast-version=0.15 atf-c; then
echo "ATF >= 0.15 not found in PKG_CONFIG_LIBDIR, exiting."
exit 1
fi
echo "found version $(pkg-config --modversion atf-c)."
echo "TEST_CFLAGS += $(pkg-config --cflags atf-c)" >>$CONFIG_MK
echo "TEST_LDFLAGS += $(pkg-config --libs atf-c)" >>$CONFIG_MK
echo "found version $($PKG_CONFIG --modversion atf-c)."
echo "TEST_CFLAGS += $($PKG_CONFIG --cflags atf-c)" >>$CONFIG_MK
echo "TEST_LDFLAGS += $($PKG_CONFIG --libs atf-c)" >>$CONFIG_MK
echo "BUILD_TESTS = yes" >>$CONFIG_MK
BUILD_TESTS_VALUE=yes
else
Expand Down