add makefile + implement adjustment method common functions

Signed-off-by: Mattias Andrée <maandree@operamail.com>

1 files changed, 88 insertions, 0 deletions

diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..f1d2536
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,88 @@
+# Copying and distribution of this file, with or without modification,
+# are permitted in any medium without royalty provided the copyright
+# notice and this notice are preserved.  This file is offered as-is,
+# without any warranty.
+
+
+# The package path prefix, if you want to install to another root, set DESTDIR to that root.
+PREFIX ?= /usr
+# The library path excluding prefix.
+LIB ?= /lib
+# The resource path excluding prefix.
+DATA ?= /share
+# The library path including prefix.
+LIBDIR ?= $(PREFIX)$(LIB)
+# The resource path including prefix.
+DATADIR ?= $(PREFIX)$(DATA)
+# The generic documentation path including prefix.
+DOCDIR ?= $(DATADIR)/doc
+# The info manual documentation path including prefix.
+INFODIR ?= $(DATADIR)/info
+# The license base path including prefix.
+LICENSEDIR ?= $(DATADIR)/licenses
+
+# The name of the package as it should be installed.
+PKGNAME ?= libgamma
+
+
+# Optimisation level (and debug flags.)
+ifeq ($(DEBUG),y)
+OPTIMISE = -Og -g
+else
+OPTIMISE = -Ofast
+endif
+
+# Enabled warnings.
+WARN = -Wall -Wextra -pedantic -Wdouble-promotion -Wformat=2 -Winit-self       \
+       -Wmissing-include-dirs -Wtrampolines -Wfloat-equal -Wshadow             \
+       -Wmissing-prototypes -Wmissing-declarations -Wredundant-decls           \
+       -Wnested-externs -Winline -Wno-variadic-macros -Wsign-conversion        \
+       -Wswitch-default -Wconversion -Wsync-nand -Wunsafe-loop-optimizations   \
+       -Wcast-align -Wstrict-overflow -Wdeclaration-after-statement -Wundef    \
+       -Wbad-function-cast -Wcast-qual -Wwrite-strings -Wlogical-op            \
+       -Waggregate-return -Wstrict-prototypes -Wold-style-definition -Wpacked  \
+       -Wvector-operation-performance -Wunsuffixed-float-constants             \
+       -Wsuggest-attribute=const -Wsuggest-attribute=noreturn                  \
+       -Wsuggest-attribute=pure -Wsuggest-attribute=format -Wnormalized=nfkc
+
+# The C standard used in the code.
+STD = c99
+
+# C compiler debug flags.
+DEBUG_FLAGS =
+ifeq ($(DEBUG),y)
+DEBUG_FLAGS += -D'DEBUG'
+endif
+
+# Options for the C compiler.
+C_FLAGS = $(OPTIMISE) $(WARN) -std=$(STD) $(CPPFLAGS) $(CFLAGS) $(LDFLAGS)  \
+          -ftree-vrp -fstrict-aliasing -fipa-pure-const -fstack-usage       \
+          -fstrict-overflow -funsafe-loop-optimizations -fno-builtin        \
+	  $(DEBUG_FLAGS)
+
+
+# Object files for the library.
+LIBOBJ = libgamma-facade
+
+
+# Build rules.
+
+.PHONY: all
+all: bin/libgamma.so
+
+
+bin/libgamma.so: $(foreach O,$(LIBOBJ),obj/$(O).o)
+	mkdir -p $(shell dirname $@)
+	$(CC) $(C_FLAGS) -shared -o $@ $^
+
+obj/%.o: src/%.c src/*.h
+	mkdir -p $(shell dirname $@)
+	$(CC) $(C_FLAGS) -fPIC -c -o $@ $<
+
+
+# Clean rules.
+
+.PHONY: clean
+clean:
+	-rm -rf obj bin
+