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3bf376c057
The conditional variable assignment operator in Makefiles (`?=`) will only assign a value if its not defined yet. However, CFLAGS/LDFLAGS are commonly defined as environment variables to pass custom compiler/linker flags (e.g. `-Os`). Unfortunately, Cyclone adds mandatory compiler flags (without which it doesn't compile) via the conditional variable assignment operator which is incorrect as these flags will not be added if CFLAGS/LDFLAGS is defined in the environment. This commit fixes this issue by appending flags to CFLAGS/LDFLAGS instead of using the conditional assignment operator.
95 lines
2.6 KiB
Text
95 lines
2.6 KiB
Text
# Cyclone Scheme
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# Copyright (c) 2014, Justin Ethier
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# All rights reserved.
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#
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# Configuration options for the makefile
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& = $(filter-out %.h %.d,$^)
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OS ?= $(shell uname)
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CC ?= cc
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LIBS = -pthread -lcyclone -lck -lm -lcyclonebn
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ifneq ($(OS),FreeBSD)
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# libdl is part of libc on FreeBSD
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LIBS += -ldl
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endif
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LIBRARY_OUTPUT_FILE = libcyclone.a
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CREATE_LIBRARY_COMMAND = $(AR)
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CREATE_LIBRARY_FLAGS = rcs
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# Compiler options
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CFLAGS += -O2 -fPIC -Wall -march=armv6k -Iinclude
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COMP_CFLAGS ?= -O2 -fPIC -Wall -march=armv6k -I$(PREFIX)/include -L$(PREFIX)/lib
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# Use these lines instead for debugging or profiling
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#CFLAGS = -g -Wall
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#CFLAGS = -g -pg -Wall
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# Linker options
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LDFLAGS += -L.
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ifeq ($(OS),Darwin)
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LDFLAGS += -Wl,-export_dynamic -Wl,-undefined -Wl,dynamic_lookup
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COMP_CFLAGS += -Wl,-export_dynamic
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else
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LDFLAGS += -Wl,--export-dynamic
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COMP_CFLAGS += -Wl,--export-dynamic
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endif
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# /usr/local is not in the search path by default on FreeBSD, so if libtommath and/or
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# concurrencykit was installed via Ports, it won't be picked up without explicitly looking
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# for it here
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ifeq ($(OS),FreeBSD)
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LDFLAGS += -L/usr/local/lib
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CFLAGS += -I/usr/local/include
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endif
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# Commands "baked into" cyclone for invoking the C compiler
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CC_PROG ?= "$(CC) ~src-file~ $(COMP_CFLAGS) -c -o ~exec-file~.o"
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CC_EXEC ?= "$(CC) ~exec-file~.o ~obj-files~ $(LIBS) $(COMP_CFLAGS) -o ~exec-file~"
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CC_LIB ?= "$(CC) ~src-file~ $(COMP_CFLAGS) -c -o ~exec-file~.o"
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CC_SO ?= "$(CC) -shared $(LDFLAGS) -o ~exec-file~.so ~exec-file~.o"
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AR ?= ar
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#CD ?= cd
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RM ?= rm -f
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#LS ?= ls
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#CP ?= cp
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#LN ?= ln
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INSTALL ?= install
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MKDIR ?= $(INSTALL) -d
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RMDIR ?= rmdir
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PREFIX ?= /usr/local
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BINDIR ?= $(PREFIX)/bin
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LIBDIR ?= $(PREFIX)/lib
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INCDIR ?= $(PREFIX)/include/cyclone
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DATADIR ?= $(PREFIX)/share/cyclone
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DESTDIR ?=
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# Automatically detect platform-specific flags, instead of using autoconf
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#CYC_PLATFORM_HAS_MEMSTREAM ?= 1
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CYC_PLATFORM_HAS_MEMSTREAM := $(shell echo "main(){char *buf; int len; open_memstream(&buf, &len);}" | $(CC) -xc - >/dev/null 2>/dev/null && echo 1 || echo 0)
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CYC_PLATFORM_HAS_FMEMOPEN := $(shell echo "main(){char *buf; fmemopen(&buf, 0, \"r\");}" | $(CC) -xc - >/dev/null 2>/dev/null && echo 1 || echo 0)
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# code from chibi's makefile to detect platform
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ifndef PLATFORM
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ifeq ($(OS),Darwin)
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PLATFORM=macosx
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else ifneq (,$(findstring $(OS),FreeBSD NetBSD OpenBSD DragonFly))
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PLATFORM=bsd
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else ifeq ($(shell uname -o),Msys)
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PLATFORM=mingw
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SOLIBDIR = $(BINDIR)
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DIFFOPTS = -b
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else ifeq ($(shell uname -o),Cygwin)
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PLATFORM=cygwin
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SOLIBDIR = $(BINDIR)
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DIFFOPTS = -b
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else ifeq ($(shell uname -o),GNU/Linux)
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PLATFORM=linux
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else
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PLATFORM=unix
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endif
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endif
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