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$NetBSD: patch-lib_Makefile,v 1.11 2021/01/03 14:55:50 adam Exp $
Detect and use third-party libraries (taken from programs/Makefile).
-fvisibility=hidden makes error when linking.
Enable the "install" target on all OS.
Fix pkgconfig installation path.
--- lib/Makefile.orig 2020-12-19 00:39:42.000000000 +0000
+++ lib/Makefile
@@ -193,6 +193,43 @@ endif
endif # BUILD_DIR
+VOID = /dev/null
+
+# Make 4.3 doesn't support '\#' anymore (https://lwn.net/Articles/810071/)
+NUM_SYMBOL := \#
+
+# thread detection
+HAVE_PTHREAD := $(shell printf '$(NUM_SYMBOL)include <pthread.h>\nint main(void) { return 0; }' | $(CC) $(FLAGS) -o have_pthread$(EXT) -x c - -pthread 2> $(VOID) && rm have_pthread$(EXT) && echo 1 || echo 0)
+HAVE_THREAD := $(shell [ "$(HAVE_PTHREAD)" -eq "1" -o -n "$(filter Windows%,$(OS))" ] && echo 1 || echo 0)
+ifeq ($(HAVE_THREAD), 1)
+THREAD_MSG := ==> building with threading support
+THREAD_CPP := -DZSTD_MULTITHREAD
+THREAD_LD := -pthread
+endif
+
+# zlib detection
+HAVE_ZLIB := $(shell printf '$(NUM_SYMBOL)include <zlib.h>\nint main(void) { return 0; }' | $(CC) $(FLAGS) -o have_zlib$(EXT) -x c - -lz 2> $(VOID) && rm have_zlib$(EXT) && echo 1 || echo 0)
+ifeq ($(HAVE_ZLIB), 1)
+ZLIB_MSG := ==> building zstd with .gz compression support
+ZLIBCPP = -DZSTD_GZCOMPRESS -DZSTD_GZDECOMPRESS
+ZLIBLD = -lz
+endif
+
+# lzma detection
+HAVE_LZMA := $(shell printf '$(NUM_SYMBOL)include <lzma.h>\nint main(void) { return 0; }' | $(CC) $(FLAGS) -o have_lzma$(EXT) -x c - -llzma 2> $(VOID) && rm have_lzma$(EXT) && echo 1 || echo 0)
+ifeq ($(HAVE_LZMA), 1)
+LZMACPP = -DZSTD_LZMACOMPRESS -DZSTD_LZMADECOMPRESS
+LZMALD = -llzma
+endif
+
+# lz4 detection
+HAVE_LZ4 := $(shell printf '$(NUM_SYMBOL)include <lz4frame.h>\n$(NUM_SYMBOL)include <lz4.h>\nint main(void) { return 0; }' | $(CC) $(FLAGS) -o have_lz4$(EXT) -x c - -llz4 2> $(VOID) && rm have_lz4$(EXT) && echo 1 || echo 0)
+ifeq ($(HAVE_LZ4), 1)
+LZ4CPP = -DZSTD_LZ4COMPRESS -DZSTD_LZ4DECOMPRESS
+LZ4LD = -llz4
+endif
+
+
# macOS linker doesn't support -soname, and use different extension
# see : https://developer.apple.com/library/mac/documentation/DeveloperTools/Conceptual/DynamicLibraries/100-Articles/DynamicLibraryDesignGuidelines.html
ifeq ($(UNAME), Darwin)
@@ -259,7 +296,8 @@ else # not Windows
LIBZSTD = libzstd.$(SHARED_EXT_VER)
.PHONY: $(LIBZSTD) # must be run every time
$(LIBZSTD): CFLAGS += -fPIC
-$(LIBZSTD): LDFLAGS += -shared -fvisibility=hidden
+$(LIBZSTD): CPPFLAGS += $(THREAD_CPP) $(ZLIBCPP) $(LZMACPP) $(LZ4CPP)
+$(LIBZSTD): LDFLAGS += -shared $(THREAD_LD) $(ZLIBLD) $(LZMALD) $(LZ4LD)
ifndef BUILD_DIR
# determine BUILD_DIR from compilation flags
@@ -349,7 +387,6 @@ clean:
#-----------------------------------------------------------------------------
# make install is validated only for below listed environments
#-----------------------------------------------------------------------------
-ifneq (,$(filter $(UNAME),Linux Darwin GNU/kFreeBSD GNU OpenBSD FreeBSD NetBSD DragonFly SunOS Haiku))
all: libzstd.pc
@@ -380,11 +417,7 @@ PCLIBPREFIX := $(if $(findstring $(LIBDI
# to PREFIX, rather than as a resolved value.
PCEXEC_PREFIX := $(if $(HAS_EXPLICIT_EXEC_PREFIX),$(EXEC_PREFIX),$${prefix})
-ifneq (,$(filter $(UNAME),FreeBSD NetBSD DragonFly))
- PKGCONFIGDIR ?= $(PREFIX)/libdata/pkgconfig
-else
PKGCONFIGDIR ?= $(LIBDIR)/pkgconfig
-endif
ifneq (,$(filter $(UNAME),SunOS))
INSTALL ?= ginstall
@@ -448,4 +481,3 @@ uninstall:
$(RM) $(DESTDIR)$(INCLUDEDIR)/zdict.h
@echo zstd libraries successfully uninstalled
-endif
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