add Makefile for llvm-config

A build time dependency on python is avoided by generating the arch
specific list of library components in advance.  A 'reconf' target
is included to regenerate them.  Approach discussed with patrick@

1 files changed, 43 insertions, 0 deletions

diff --git a/gnu/usr.bin/clang/llvm-config/Makefile b/gnu/usr.bin/clang/llvm-config/Makefile
new file mode 100644
index 00000000000..56eb9ed5775
--- /dev/null
+++ b/gnu/usr.bin/clang/llvm-config/Makefile
@@ -0,0 +1,43 @@
+# $OpenBSD: Makefile,v 1.1 2019/03/05 01:55:18 jsg Exp $
+
+PROG=	llvm-config
+BINDIR= /usr/bin
+NOMAN=
+
+NATIVE_ARCHS=AArch64 ARM Mips PowerPC Sparc X86
+
+PYTHON=		python2
+LLVMBUILD=	${.CURDIR}/../../../llvm/utils/llvm-build/llvm-build
+
+.include <bsd.own.mk>
+SRCS=	llvm-config.cpp
+
+CPPFLAGS+= -I${.CURDIR}
+
+llvm-config.o: BuildVariables.inc LibraryDependencies.inc
+
+BuildVariables.inc: ${.CURDIR}/BuildVariables.inc.def
+	cp ${.CURDIR}/BuildVariables.inc.def ${.OBJDIR}/BuildVariables.inc
+	echo "#define LLVM_TARGETS_BUILT \"${LLVM_ARCH} AMDGPU\"" >> \
+	    ${.OBJDIR}/BuildVariables.inc
+
+LibraryDependencies.inc:
+	cp ${.CURDIR}/LibraryDependencies.inc.${LLVM_ARCH} \
+	    ${.OBJDIR}/LibraryDependencies.inc
+
+LLVM_LIBDEPS=	LLVMTableGen LLVMSupport
+
+reconf:
+.for arch in ${NATIVE_ARCHS}
+	${PYTHON} -B ${LLVMBUILD} \
+	    --native-target ${LLVM_ARCH} \
+	    --enable-targets "${arch} AMDGPU" \
+	    --write-library-table ${.CURDIR}/LibraryDependencies.inc.${arch}
+.endfor
+
+CLEANFILES+= BuildVariables.inc LibraryDependencies.inc
+
+.PATH:	${.CURDIR}/../../../llvm/tools/llvm-config
+
+.include <bsd.prog.mk>
+