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gdb: compile with -fcommon explicitly

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As described in the comment, gdb relies on some of the linker magic that
happens with -fcommon. I suspect the life expectancy of gdb-in-base is low
enough that this isn't worth spending much time addressing, especially given
the vintage. Hit it with the -fcommon hammer so that it continues to just
work.

MFC after:	3 days
This commit is contained in:
Kyle Evans 2020-03-29 23:59:14 +00:00
parent 006eb44926
commit 6f00f42ab6
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=359432
1 changed files with 5 additions and 0 deletions
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5
gnu/usr.bin/gdb/Makefile.inc
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@ -47,6 +47,11 @@ CFLAGS+= -I${CNTRB_GDB}/include
CFLAGS+= -I${CNTRB_BU}/bfd
CFLAGS+= -I${SYSROOT:U${DESTDIR}}/${INCLUDEDIR}/edit
# Some bits here currently rely on some of the linker-merging magic that happens
# with -fcommon. While this is the default right now, explicitly set -fcommon
# so that it continues to build when the default flips.
CFLAGS+= -fcommon
GENSRCS+= nm.h tm.h
.if defined(GDB_CROSS_DEBUGGER)