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Suppress make error messages on non-GNU platforms

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This commit is contained in:
Raymond Pasco 2016-08-26 16:32:52 +00:00
parent 88c9921ae9
commit 67ab030051
1 changed files with 2 additions and 2 deletions
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4
Makefile
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@ -137,13 +137,13 @@ endif
# glibc 2.24 deprecates readdir_r; iff glibc >=2.24,
# don't upgrade 'deprecated declarations' warnings to errors
# dependency: `getconf`, which comes w/glibc
GLIBC := $(lastword $(shell getconf GNU_LIBC_VERSION))
GLIBC := $(lastword $(shell getconf GNU_LIBC_VERSION 2>/dev/null))
# dependency: none, uses make's native functions
GLIBC_MAJ := $(word 1, $(subst ., ,$(GLIBC)))
GLIBC_MIN := $(word 2, $(subst ., ,$(GLIBC)))
# dependency: `expr` shell built-in
GLIBC_GE_2_24 := $(shell expr $(GLIBC_MAJ) ">" 2 "|" \
$(GLIBC_MAJ) "=" 2 "&" $(GLIBC_MIN) ">=" 24)
$(GLIBC_MAJ) "=" 2 "&" $(GLIBC_MIN) ">=" 24 2>/dev/null)
ifeq (1,$(GLIBC_GE_2_24))
CWFLAGS+=-Wno-error=deprecated-declarations
endif