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80 lines
2.7 KiB
Makefile
80 lines
2.7 KiB
Makefile
# -*- makefile -*-
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#
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# ll.gmk: GNUMAKEFILE FRAGMENT FOR CLANG/LLVM
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#
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# $Id$
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# Copyright (c) 2001-2020 Ravenbrook Limited. See end of file for license.
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#
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# This file is included by platform makefiles that use the Clang/LLVM
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# compiler. It defines the compiler-specific variables that the
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# common makefile fragment (<code/comm.gmk>) requires.
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CC = clang
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CFLAGSDEBUG = -O0 -g3
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CFLAGSOPT = -O2 -g3
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CFLAGSCOMPILER := \
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-Waggregate-return \
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-Wall \
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-Wcast-qual \
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-Wconversion \
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-Wduplicate-enum \
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-Werror \
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-Wextra \
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-Winline \
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-Wmissing-prototypes \
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-Wmissing-variable-declarations \
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-Wnested-externs \
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-Wpointer-arith \
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-Wshadow \
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-Wstrict-aliasing=2 \
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-Wstrict-prototypes \
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-Wunreachable-code \
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-Wwrite-strings
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CFLAGSCOMPILERSTRICT := -std=c89 -pedantic
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# A different set of compiler flags for less strict compilation, for
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# instance when we need to #include a third-party header file that
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# won't fly with -ansi -pedantic. Use sparingly!
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CFLAGSCOMPILERLAX :=
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# clang -MM generates a dependency line of the form:
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# thing.o : thing.c ...
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# The sed line converts this into:
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# <pfm>/<variety>/thing.o <pfm>/<variety>/thing.d : thing.c ...
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# If interrupted, this is liable to leave a zero-length file behind.
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define gendep
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$(SHELL) -ec "$(CC) $(CFLAGSSTRICT) -MM $< | \
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sed '/:/s!$*.o!$(@D)/& $(@D)/$*.d!' > $@"
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[ -s $@ ] || rm -f $@
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endef
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# C. COPYRIGHT AND LICENSE
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#
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# Copyright (C) 2001-2020 Ravenbrook Limited <https://www.ravenbrook.com/>.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met:
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#
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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#
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the
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# distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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