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Message-ID:	<3399d319-d0ed-4bb2-b67f-8439ec5b8b4b@SystematicSW.ab.ca>
Date:	Sat, 23 Aug 2025 13:00:17 -0600
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To:	cygwin AT cygwin DOT com
Subject:	gcc 13 collect2 ld cannot find
	/usr/lib/gcc/x86_64-pc-cygwin/12/{crtbeginS.o,crtend.o}
Organization:	Systematic Software
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From:	Brian Inglis via Cygwin <cygwin AT cygwin DOT com>
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In libtool build (ncurses package update), installed gcc 13:

$ gcc --version
gcc (GCC) 13.4.0
Copyright (C) 2023 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

collect2 appears to be looking for startup crt objects from gcc 12:

cd ../lib && /usr/bin/libtool --tag=CXX --silent --mode=link /usr/bin/g++  -ggdb 
-O2 -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=3 
-fstack-protector-strong --param=ssp-buffer-size=4 -Werror=return-type 
-ffile-prefix-map=/usr/src/ncurses/ncurses-6.5+20250816-1.x86_64/build=/usr/src/debug/ncurses-6.5+20250816-1 
-ffile-prefix-map=/usr/src/ncurses/ncurses-6.5+20250816-1.x86_64/src/ncurses-6.5-20250816=/usr/src/debug/ncurses-6.5+20250816-1 
  \
		-o libncurses++w.la ../obj_lo/cursesf.lo ../obj_lo/cursesm.lo 
../obj_lo/cursesw.lo ../obj_lo/cursespad.lo ../obj_lo/cursesp.lo 
../obj_lo/cursslk.lo ../obj_lo/cursesapp.lo ../obj_lo/cursesmain.lo \
	-rpath /usr/lib \
	-version-number 10:0 -no-undefined -L../lib -lformw -lmenuw -lpanelw -lncursesw 
  -L../lib ../lib/libformw.la ../lib/libmenuw.la ../lib/libpanelw.la 
../lib/libncursesw.la   -lutil
/usr/lib/gcc/x86_64-pc-cygwin/13/../../../../x86_64-pc-cygwin/bin/ld: cannot 
find /usr/lib/gcc/x86_64-pc-cygwin/12/crtbeginS.o: No such file or directory
/usr/lib/gcc/x86_64-pc-cygwin/13/../../../../x86_64-pc-cygwin/bin/ld: cannot 
find /usr/lib/gcc/x86_64-pc-cygwin/12/crtend.o: No such file or directory
collect2: error: ld returned 1 exit status

$ cygcheck -p /usr/lib/gcc/x86_64-pc-cygwin/12/
Found 2 matches for /usr/lib/gcc/x86_64-pc-cygwin/12/
gcc-debuginfo-12.4.0-3 - gcc-debuginfo: Debug info for gcc
gcc-debuginfo-12.5.0-1 - gcc-debuginfo: Debug info for gcc

-- 
Take care. Thanks, Brian Inglis              Calgary, Alberta, Canada

La perfection est atteinte                   Perfection is achieved
non pas lorsqu'il n'y a plus rien à ajouter  not when there is no more to add
mais lorsqu'il n'y a plus rien à retrancher  but when there is no more to cut
                                 -- Antoine de Saint-Exupéry

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