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Allow pkg-config binary to be overridden with PKG_CONFIG

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This is one of the de facto standard interfaces used in Linux
distributions for cross-compilation (alongside overriding CC and
similar variables), and in particular is used in Debian and its
derivatives.

Signed-off-by: Simon McVittie <smcv@debian.org>
This commit is contained in:
Simon McVittie 2018-06-12 10:53:27 +01:00 committed by Tim Angus
parent 38a2f4d938
commit fb4b206709
1 changed files with 24 additions and 21 deletions
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45
Makefile
View file

@ -282,15 +282,18 @@ bin_path=$(shell which $(1) 2> /dev/null)
# The autoupdater uses curl, so figure out its flags no matter what.
# We won't need this if we only build the server
# set PKG_CONFIG_PATH to influence this, e.g.
# PKG_CONFIG_PATH=/opt/cross/i386-mingw32msvc/lib/pkgconfig
ifneq ($(call bin_path, pkg-config),)
CURL_CFLAGS ?= $(shell pkg-config --silence-errors --cflags libcurl)
CURL_LIBS ?= $(shell pkg-config --silence-errors --libs libcurl)
OPENAL_CFLAGS ?= $(shell pkg-config --silence-errors --cflags openal)
OPENAL_LIBS ?= $(shell pkg-config --silence-errors --libs openal)
SDL_CFLAGS ?= $(shell pkg-config --silence-errors --cflags sdl2|sed 's/-Dmain=SDL_main//')
SDL_LIBS ?= $(shell pkg-config --silence-errors --libs sdl2)
# set PKG_CONFIG_PATH or PKG_CONFIG to influence this, e.g.
# PKG_CONFIG_PATH=/opt/cross/i386-mingw32msvc/lib/pkgconfig or
# PKG_CONFIG=arm-linux-gnueabihf-pkg-config
PKG_CONFIG ?= pkg-config
ifneq ($(call bin_path, $(PKG_CONFIG)),)
CURL_CFLAGS ?= $(shell $(PKG_CONFIG) --silence-errors --cflags libcurl)
CURL_LIBS ?= $(shell $(PKG_CONFIG) --silence-errors --libs libcurl)
OPENAL_CFLAGS ?= $(shell $(PKG_CONFIG) --silence-errors --cflags openal)
OPENAL_LIBS ?= $(shell $(PKG_CONFIG) --silence-errors --libs openal)
SDL_CFLAGS ?= $(shell $(PKG_CONFIG) --silence-errors --cflags sdl2|sed 's/-Dmain=SDL_main//')
SDL_LIBS ?= $(shell $(PKG_CONFIG) --silence-errors --libs sdl2)
else
# assume they're in the system default paths (no -I or -L needed)
CURL_LIBS ?= -lcurl
@ -1061,8 +1064,8 @@ ifeq ($(NEED_OPUS),1)
-I$(OPUSDIR)/include -I$(OPUSDIR)/celt -I$(OPUSDIR)/silk \
-I$(OPUSDIR)/silk/float -I$(OPUSFILEDIR)/include
else
OPUS_CFLAGS ?= $(shell pkg-config --silence-errors --cflags opusfile opus || true)
OPUS_LIBS ?= $(shell pkg-config --silence-errors --libs opusfile opus || echo -lopusfile -lopus)
OPUS_CFLAGS ?= $(shell $(PKG_CONFIG) --silence-errors --cflags opusfile opus || true)
OPUS_LIBS ?= $(shell $(PKG_CONFIG) --silence-errors --libs opusfile opus || echo -lopusfile -lopus)
endif
CLIENT_CFLAGS += $(OPUS_CFLAGS)
CLIENT_LIBS += $(OPUS_LIBS)
@ -1074,8 +1077,8 @@ ifeq ($(USE_CODEC_VORBIS),1)
ifeq ($(USE_INTERNAL_VORBIS),1)
CLIENT_CFLAGS += -I$(VORBISDIR)/include -I$(VORBISDIR)/lib
else
VORBIS_CFLAGS ?= $(shell pkg-config --silence-errors --cflags vorbisfile vorbis || true)
VORBIS_LIBS ?= $(shell pkg-config --silence-errors --libs vorbisfile vorbis || echo -lvorbisfile -lvorbis)
VORBIS_CFLAGS ?= $(shell $(PKG_CONFIG) --silence-errors --cflags vorbisfile vorbis || true)
VORBIS_LIBS ?= $(shell $(PKG_CONFIG) --silence-errors --libs vorbisfile vorbis || echo -lvorbisfile -lvorbis)
endif
CLIENT_CFLAGS += $(VORBIS_CFLAGS)
CLIENT_LIBS += $(VORBIS_LIBS)
@ -1086,8 +1089,8 @@ ifeq ($(NEED_OGG),1)
ifeq ($(USE_INTERNAL_OGG),1)
OGG_CFLAGS = -I$(OGGDIR)/include
else
OGG_CFLAGS ?= $(shell pkg-config --silence-errors --cflags ogg || true)
OGG_LIBS ?= $(shell pkg-config --silence-errors --libs ogg || echo -logg)
OGG_CFLAGS ?= $(shell $(PKG_CONFIG) --silence-errors --cflags ogg || true)
OGG_LIBS ?= $(shell $(PKG_CONFIG) --silence-errors --libs ogg || echo -logg)
endif
CLIENT_CFLAGS += $(OGG_CFLAGS)
CLIENT_LIBS += $(OGG_LIBS)
@ -1104,8 +1107,8 @@ endif
ifeq ($(USE_INTERNAL_ZLIB),1)
ZLIB_CFLAGS = -DNO_GZIP -I$(ZDIR)
else
ZLIB_CFLAGS ?= $(shell pkg-config --silence-errors --cflags zlib || true)
ZLIB_LIBS ?= $(shell pkg-config --silence-errors --libs zlib || echo -lz)
ZLIB_CFLAGS ?= $(shell $(PKG_CONFIG) --silence-errors --cflags zlib || true)
ZLIB_LIBS ?= $(shell $(PKG_CONFIG) --silence-errors --libs zlib || echo -lz)
endif
BASE_CFLAGS += $(ZLIB_CFLAGS)
LIBS += $(ZLIB_LIBS)
@ -1116,15 +1119,15 @@ ifeq ($(USE_INTERNAL_JPEG),1)
else
# IJG libjpeg doesn't have pkg-config, but libjpeg-turbo uses libjpeg.pc;
# we fall back to hard-coded answers if libjpeg.pc is unavailable
JPEG_CFLAGS ?= $(shell pkg-config --silence-errors --cflags libjpeg || true)
JPEG_LIBS ?= $(shell pkg-config --silence-errors --libs libjpeg || echo -ljpeg)
JPEG_CFLAGS ?= $(shell $(PKG_CONFIG) --silence-errors --cflags libjpeg || true)
JPEG_LIBS ?= $(shell $(PKG_CONFIG) --silence-errors --libs libjpeg || echo -ljpeg)
BASE_CFLAGS += $(JPEG_CFLAGS)
RENDERER_LIBS += $(JPEG_LIBS)
endif
ifeq ($(USE_FREETYPE),1)
FREETYPE_CFLAGS ?= $(shell pkg-config --silence-errors --cflags freetype2 || true)
FREETYPE_LIBS ?= $(shell pkg-config --silence-errors --libs freetype2 || echo -lfreetype)
FREETYPE_CFLAGS ?= $(shell $(PKG_CONFIG) --silence-errors --cflags freetype2 || true)
FREETYPE_LIBS ?= $(shell $(PKG_CONFIG) --silence-errors --libs freetype2 || echo -lfreetype)
BASE_CFLAGS += -DBUILD_FREETYPE $(FREETYPE_CFLAGS)
RENDERER_LIBS += $(FREETYPE_LIBS)