From 46d470c20cc981fb87f4c3b2742f365c292de5d7 Mon Sep 17 00:00:00 2001 From: Ryan Schmidt Date: Fri, 16 Nov 2018 03:49:15 -0600 Subject: [PATCH] Fix feature detection with multiple -arch flags When multiple -arch flags are used, the compiler invokes itself once for each architecture. Apparently, input on stdin is consumed by the compilation of the first arch and is no longer available to the compilation of the second arch, which results in a build failure and the potentially incorrect determination that a feature is not available. So write the feature detection source to a file instead of using stdin. --- programs/Makefile | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/programs/Makefile b/programs/Makefile index 77c1d6a2d..6249e5921 100644 --- a/programs/Makefile +++ b/programs/Makefile @@ -91,7 +91,7 @@ VOID = /dev/null # thread detection NO_THREAD_MSG := ==> no threads, building without multithreading support -HAVE_PTHREAD := $(shell printf '\#include \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_PTHREAD := $(shell printf '\#include \nint main(void) { return 0; }' > have_pthread.c && $(CC) $(FLAGS) -o have_pthread$(EXT) have_pthread.c -pthread 2> $(VOID) && rm have_pthread$(EXT) && echo 1 || echo 0; rm have_pthread.c) 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 @@ -103,7 +103,7 @@ endif # zlib detection NO_ZLIB_MSG := ==> no zlib, building zstd without .gz support -HAVE_ZLIB := $(shell printf '\#include \nint main(void) { return 0; }' | $(CC) $(FLAGS) -o have_zlib$(EXT) -x c - -lz 2> $(VOID) && rm have_zlib$(EXT) && echo 1 || echo 0) +HAVE_ZLIB := $(shell printf '\#include \nint main(void) { return 0; }' > have_zlib.c && $(CC) $(FLAGS) -o have_zlib$(EXT) have_zlib.c -lz 2> $(VOID) && rm have_zlib$(EXT) && echo 1 || echo 0; rm have_zlib.c) ifeq ($(HAVE_ZLIB), 1) ZLIB_MSG := ==> building zstd with .gz compression support ZLIBCPP = -DZSTD_GZCOMPRESS -DZSTD_GZDECOMPRESS @@ -114,7 +114,7 @@ endif # lzma detection NO_LZMA_MSG := ==> no liblzma, building zstd without .xz/.lzma support -HAVE_LZMA := $(shell printf '\#include \nint main(void) { return 0; }' | $(CC) $(FLAGS) -o have_lzma$(EXT) -x c - -llzma 2> $(VOID) && rm have_lzma$(EXT) && echo 1 || echo 0) +HAVE_LZMA := $(shell printf '\#include \nint main(void) { return 0; }' > have_lzma.c && $(CC) $(FLAGS) -o have_lzma$(EXT) have_lzma.c -llzma 2> $(VOID) && rm have_lzma$(EXT) && echo 1 || echo 0; rm have_lzma.c) ifeq ($(HAVE_LZMA), 1) LZMA_MSG := ==> building zstd with .xz/.lzma compression support LZMACPP = -DZSTD_LZMACOMPRESS -DZSTD_LZMADECOMPRESS @@ -125,7 +125,7 @@ endif # lz4 detection NO_LZ4_MSG := ==> no liblz4, building zstd without .lz4 support -HAVE_LZ4 := $(shell printf '\#include \n\#include \nint main(void) { return 0; }' | $(CC) $(FLAGS) -o have_lz4$(EXT) -x c - -llz4 2> $(VOID) && rm have_lz4$(EXT) && echo 1 || echo 0) +HAVE_LZ4 := $(shell printf '\#include \n\#include \nint main(void) { return 0; }' > have_lz4.c && $(CC) $(FLAGS) -o have_lz4$(EXT) have_lz4.c -llz4 2> $(VOID) && rm have_lz4$(EXT) && echo 1 || echo 0; rm have_lz4.c) ifeq ($(HAVE_LZ4), 1) LZ4_MSG := ==> building zstd with .lz4 compression support LZ4CPP = -DZSTD_LZ4COMPRESS -DZSTD_LZ4DECOMPRESS -- 2.47.2