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PREFIX ?= /usr/local
libdir ?= /lib
includedir ?= /include
pkgconfigdir ?= /lib/pkgconfig
MAKEFLAGS += --no-builtin-rules
WARNINGS = -Wall -Wextra -Wpedantic -Wformat=2 -Wstrict-aliasing=3 -Wstrict-overflow=5 -Wstack-usage=64000 \
-Wfloat-equal -Wcast-align -Wpointer-arith -Wchar-subscripts -Warray-bounds=2
override CFLAGS ?= -g -O2 $(WARNINGS)
override CFLAGS += -std=c11
override CPPFLAGS ?= -D_FORTIFY_SOURCE=2
override CPPFLAGS += -Iinclude
override LDFLAGS += -fPIC
libs = libasound.so.2.0.0
libsymlinks = libasound.so.2 libasound.so
pkgconfigs = alsa.pc
all: $(libs) $(libsymlinks) $(pkgconfigs)
%.pc: %.pc.in
m4 -DINCLUDEDIR="$(PREFIX)$(includedir)" -DLIBDIR="$(PREFIX)$(libdir)" $^ > $@
libasound.so.2.0.0: private override CPPFLAGS += -D_DEFAULT_SOURCE
libasound.so.2.0.0: private override CPPFLAGS += -DBYTE_ORDER=__BYTE_ORDER -DLITTLE_ENDIAN=__LITTLE_ENDIAN -DBIG_ENDIAN=__BIG_ENDIAN
libasound.so.2.0.0: private override CFLAGS += -Wno-unused-parameter -Wno-deprecated-declarations
libasound.so.2.0.0: private override LDFLAGS += -Wl,--version-script=libasound.map -Wl,-soname,libasound.so.2
libasound.so.2.0.0: private override LDLIBS += -lsndio
libasound.so.2.0.0: src/libasound.c src/pcm.c src/mixer.c src/util/dsp.c src/util/dsp.h src/util/sysex.h src/util/defs.h src/util/util.h src/stubs.h src/symversioning-hell.h libasound.map
$(LINK.c) -shared $(filter %.c,$^) $(LDLIBS) -o $@
libasound.so.2: libasound.so.2.0.0
ln -fs $^ $@
libasound.so: libasound.so.2.0.0
ln -fs $^ $@
install-lib: $(libs)
install -Dm755 $^ -t "$(DESTDIR)$(PREFIX)$(libdir)"
install-symlinks: $(libsymlinks)
chmod 755 $^
mkdir -p "$(DESTDIR)$(PREFIX)$(libdir)"
cp -P $^ "$(DESTDIR)$(PREFIX)$(libdir)"
install-pkgconfig: $(pkgconfigs)
install -Dm755 $^ -t "$(DESTDIR)$(PREFIX)$(pkgconfigdir)"
install-include:
mkdir -p "$(DESTDIR)$(PREFIX)$(includedir)"
cp -r include/alsa "$(DESTDIR)$(PREFIX)$(includedir)/"
install: install-lib install-symlinks install-pkgconfig install-include
clean:
$(RM) $(libs) $(libsymlinks) $(pkgconfigs)
.PHONY: all clean install
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