25 lines
956 B
Diff
25 lines
956 B
Diff
Define _GNU_SOURCE for a declaration of strptime
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This is needed for compatibility with future C compilers which reject
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implicit function declarations by default. Without _GNU_SOURCE (or a
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similar feature test macro), <time.h> does not declare the strptime
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function, and compilation can fail.
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Submitted upstream:
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<https://lore.kernel.org/linux-efi/87fsdhllhk.fsf@oldenburg.str.redhat.com/>
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diff --git a/Make.rules b/Make.rules
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index 903a5a4..d4de1ef 100644
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--- a/Make.rules
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+++ b/Make.rules
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@@ -14,7 +14,7 @@ else
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$(error unknown architecture $(ARCH))
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endif
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INCDIR = -I$(TOPDIR)include/ -I/usr/include/efi -I/usr/include/efi/$(ARCH) -I/usr/include/efi/protocol
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-CPPFLAGS = -DCONFIG_$(ARCH)
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+CPPFLAGS = -DCONFIG_$(ARCH) -D_GNU_SOURCE
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CFLAGS = -O2 -g $(ARCH3264) -fpic -Wall -fshort-wchar -fno-strict-aliasing -fno-merge-constants -fno-stack-protector -ffreestanding -fno-stack-check
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LDFLAGS = -nostdlib
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CRTOBJ = crt0-efi-$(ARCH).o
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