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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=12500 \
-Wfloat-equal -Wcast-align -Wpointer-arith -Wchar-subscripts -Warray-bounds=2
override CFLAGS ?= -g
override CFLAGS += -std=c11 $(WARNINGS)
override CPPFLAGS += -Iinclude
libs = libasound.so
libsymlinks = libasound.so.2 libasound.so.2.0.0
pkgconfigs = alsa.pc
all: $(libs)
%.so:
$(LINK.c) $(filter %.c,$^) $(LDLIBS) -fPIC -shared -Wl,-soname,$@.$(soabi).$(sompatch) -o $@.$(soabi).$(sompatch)
ln -fs $@.$(soabi).$(sompatch) $@.$(soabi)
ln -fs $@.$(soabi).$(sompatch) $@
%.pc: %.pc.in
m4 -DINCLUDEDIR="$(PREFIX)$(includedir)" -DLIBDIR="$(PREFIX)$(libdir)" $^ > $@
libasound.so: private override soabi=2
libasound.so: private override sompatch=0.0
libasound.so: private override CPPFLAGS += -D_POSIX_SOURCE
libasound.so: private override CFLAGS += -Wno-unused-parameter -Wno-deprecated-declarations
libasound.so: private override LDFLAGS += -Wl,--version-script=libasound.map
libasound.so: private override LDLIBS += -lsndio
libasound.so: libasound.c libasound.map stubs.h symversioning-hell.h alsa.pc
install-lib: $(libs) $(libsymlinks)
install -Dm755 $^ -t "$(DESTDIR)$(PREFIX)$(libdir)"
install-pkgconfig: $(pkgconfigs)
install -Dm755 $^ -t "$(DESTDIR)$(PREFIX)$(pkgconfigdir)"
install-include:
install -Dm755 -d include/alsa "$(DESTDIR)$(PREFIX)$(includedir)"
install: install-lib install-pkgconfig install-include
clean:
$(RM) $(libs) $(libsymlinks) $(pkgconfigs)
.PHONY: all clean install
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