tools: zstd: add patch fixing wrong generated .pc with lib-mt
The current .pc generated by make build system for zstd is wrong and always assume a single-threaded library is used. This wasn't the case for the meson build system that used his own logic to generate the pkg-config file. Add a patch to fix this by introducing install-mt-pc make target to generate the correct pkg-config gile. Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
This commit is contained in:
Christian Marangi
parent
0a0d89265e
commit
f2fabf7aaa
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@ -34,7 +34,7 @@ define Host/Compile
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endef
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define Host/Install
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+$(MAKE) $(HOST_JOBS) -C $(HOST_BUILD_DIR)/lib install-pc install-static install-includes PREFIX=$(HOST_BUILD_PREFIX)
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+$(MAKE) $(HOST_JOBS) -C $(HOST_BUILD_DIR)/lib install-mt-pc install-static install-includes PREFIX=$(HOST_BUILD_PREFIX)
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+$(MAKE) $(HOST_JOBS) -C $(HOST_BUILD_DIR)/programs install PREFIX=$(HOST_BUILD_PREFIX)
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endef
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@ -0,0 +1,97 @@
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From 5886e6a45b3c20c8d8f837657d1506b580434136 Mon Sep 17 00:00:00 2001
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From: Christian Marangi <ansuelsmth@gmail.com>
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Date: Sat, 6 Apr 2024 14:41:54 +0200
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Subject: [PATCH] Provide variant pkg-config file for multi-threaded static lib
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Multi-threaded static library require -pthread to correctly link and works.
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The pkg-config we provide tho only works with dynamic multi-threaded library
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and won't provide the correct libs and cflags values if lib-mt is used.
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To handle this, introduce a variant of libzstd.pc.in, mt-libzstd.pc.in
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and intoduce a new make target, install-mt-pc to permit advanced user to
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install and generate a correct pkg-config file for lib-mt.
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This was notice while migrating from meson to make build system where
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meson generates a correct .pc file while make doesn't.
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Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
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---
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lib/Makefile | 16 ++++++++++++++++
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lib/README.md | 4 ++++
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lib/mt-libzstd.pc.in | 15 +++++++++++++++
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3 files changed, 35 insertions(+)
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create mode 100644 lib/mt-libzstd.pc.in
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diff --git a/lib/Makefile b/lib/Makefile
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index 8bfdade9..4933f0e9 100644
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--- a/lib/Makefile
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+++ b/lib/Makefile
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@@ -319,6 +319,17 @@ libzstd.pc: libzstd.pc.in
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-e 's|@LIBS_PRIVATE@|$(LDFLAGS_DYNLIB)|' \
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$< >$@
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+mt-libzstd.pc: mt-libzstd.pc.in
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+ @echo creating pkgconfig
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+ @sed \
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+ -e 's|@PREFIX@|$(PREFIX)|' \
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+ -e 's|@EXEC_PREFIX@|$(PCEXEC_PREFIX)|' \
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+ -e 's|@INCLUDEDIR@|$(PCINCPREFIX)$(PCINCDIR)|' \
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+ -e 's|@LIBDIR@|$(PCLIBPREFIX)$(PCLIBDIR)|' \
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+ -e 's|@VERSION@|$(VERSION)|' \
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+ -e 's|@LIBS_PRIVATE@|$(LDFLAGS_DYNLIB)|' \
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+ $< >$@
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+
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.PHONY: install
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install: install-pc install-static install-shared install-includes
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@echo zstd static and shared library installed
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@@ -328,6 +339,11 @@ install-pc: libzstd.pc
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[ -e $(DESTDIR)$(PKGCONFIGDIR) ] || $(INSTALL) -d -m 755 $(DESTDIR)$(PKGCONFIGDIR)/
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$(INSTALL_DATA) libzstd.pc $(DESTDIR)$(PKGCONFIGDIR)/
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+.PHONY: install-mt-pc
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+install-mt-pc: mt-libzstd.pc
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+ [ -e $(DESTDIR)$(PKGCONFIGDIR) ] || $(INSTALL) -d -m 755 $(DESTDIR)$(PKGCONFIGDIR)/
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+ $(INSTALL_DATA) mt-libzstd.pc $(DESTDIR)$(PKGCONFIGDIR)/libzstd.pc
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+
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.PHONY: install-static
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install-static:
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# only generate libzstd.a if it's not already present
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diff --git a/lib/README.md b/lib/README.md
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index a560f06c..3038bc7a 100644
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--- a/lib/README.md
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+++ b/lib/README.md
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@@ -33,6 +33,10 @@ For convenience, we provide a build target to generate multi and single threaded
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When linking a POSIX program with a multithreaded version of `libzstd`,
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note that it's necessary to invoke the `-pthread` flag during link stage.
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+The `.pc` generated from `make install` or `make install-pc` always assume a single-threaded static library
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+is compiled. If `make lib-mt` is used, to correctly generate a `.pc` for the multi-threaded static library,
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+`make install-mt-pc` is needed.
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+
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Multithreading capabilities are exposed
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via the [advanced API defined in `lib/zstd.h`](https://github.com/facebook/zstd/blob/v1.4.3/lib/zstd.h#L351).
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diff --git a/lib/mt-libzstd.pc.in b/lib/mt-libzstd.pc.in
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new file mode 100644
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index 00000000..cd93301a
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--- /dev/null
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+++ b/lib/mt-libzstd.pc.in
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@@ -0,0 +1,15 @@
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+# ZSTD - standard compression algorithm
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+# Copyright (c) Meta Platforms, Inc. and affiliates.
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+# BSD 2-Clause License (https://opensource.org/licenses/bsd-license.php)
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+
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+prefix=@PREFIX@
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+exec_prefix=@EXEC_PREFIX@
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+includedir=@INCLUDEDIR@
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+libdir=@LIBDIR@
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+
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+Name: zstd
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+Description: fast lossless compression algorithm library
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+URL: https://facebook.github.io/zstd/
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+Version: @VERSION@
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+Libs: -L${libdir} -lzstd @LIBS_PRIVATE@
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+Cflags: -I${includedir} @LIBS_PRIVATE@
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--
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2.43.0
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