cygport build injecting /usr/lib/gcc/x86_64-pc-cygwin/7.4.0/ paths

[Duncan Roe]

On Fri, Nov 12, 2021 at 10:50:41AM -0700, Brian Inglis wrote:
> Got these errors trying to build latest ncurses on my system, so retried on
> scallywag and got same result, with no clue where that is coming from!
> There are no files in the tarball, repo, or build dirs containing 7.4.0 but
> it looks suspiciously like the package version 6.3.0 incremented!
> Anyone ever seen these kinds of artifacts, or aware of any code doing this
> kind of incrementing?
>
> $ fgrep 7.4.0 scallywag/*86*/6_Build\ packages.log
> scallywag/i686/6_Build packages.log:2021-11-12T09:54:57.1027256Z libtool:
> link: g++ -shared -nostdlib /usr/lib/gcc/i686-pc-cygwin/7.4.0/crtbeginS.o
> ../obj_lo/.libs/cursesf.o ../obj_lo/.libs/cursesm.o
> ../obj_lo/.libs/cursesw.o ../obj_lo/.libs/cursespad.o
> ../obj_lo/.libs/cursesp.o ../obj_lo/.libs/cursslk.o
> ../obj_lo/.libs/cursesapp.o ../obj_lo/.libs/cursesmain.o
> -L/cygdrive/d/a/scallywag/ncurses/ncurses-6.3-1.20211106.i686/build/lib/.libs
> -L../lib /cygdrive/d/a/scallywag/ncurses/ncurses-6.3-1.20211106.i686/build/lib/.libs/libformw.dll.a /cygdrive/d/a/scallywag/ncurses/ncurses-6.3-1.20211106.i686/build/lib/.libs/libmenuw.dll.a /cygdrive/d/a/scallywag/ncurses/ncurses-6.3-1.20211106.i686/build/lib/.libs/libpanelw.dll.a
> ../lib/.libs/libformw.dll.a ../lib/.libs/libmenuw.dll.a
> ../lib/.libs/libpanelw.dll.a /cygdrive/d/a/scallywag/ncurses/ncurses-6.3-1.20211106.i686/build/lib/.libs/libncursesw.dll.a
> ../lib/.libs/libncursesw.dll.a -lutil -L/usr/lib/gcc/i686-pc-cygwin/7.4.0
> -L/usr/lib/gcc/i686-pc-cygwin/7.4.0/../../../../i686-pc-cygwin/lib
> -L/usr/lib/gcc/i686-pc-cygwin/7.4.0/../../.. -lstdc++ -lgcc_s -lgcc -lcygwin
> -ladvapi32 -lshell32 -luser32 -lkernel32 -lgcc_s -lgcc
> /usr/lib/gcc/i686-pc-cygwin/7.4.0/crtend.o  -ggdb -O2
> -fstack-protector-strong   -o .libs/cygncurses++w-10.dll
> -Wl,--enable-auto-image-base -Xlinker --out-implib -Xlinker
> .libs/libncurses++w.dll.a
> scallywag/i686/6_Build packages.log:2021-11-12T09:54:57.1848593Z
> /usr/lib/gcc/i686-pc-cygwin/11/../../../../i686-pc-cygwin/bin/ld: cannot
> find /usr/lib/gcc/i686-pc-cygwin/7.4.0/crtbeginS.o: No such file or
> directory
> scallywag/i686/6_Build packages.log:2021-11-12T09:54:57.3516554Z
> /usr/lib/gcc/i686-pc-cygwin/11/../../../../i686-pc-cygwin/bin/ld: cannot
> find /usr/lib/gcc/i686-pc-cygwin/7.4.0/crtend.o: No such file or directory
> scallywag/x86_64/6_Build packages.log:2021-11-12T09:52:54.1343744Z libtool:
> link: g++ -shared -nostdlib /usr/lib/gcc/x86_64-pc-cygwin/7.4.0/crtbeginS.o
> ../obj_lo/.libs/cursesf.o ../obj_lo/.libs/cursesm.o
> ../obj_lo/.libs/cursesw.o ../obj_lo/.libs/cursespad.o
> ../obj_lo/.libs/cursesp.o ../obj_lo/.libs/cursslk.o
> ../obj_lo/.libs/cursesapp.o ../obj_lo/.libs/cursesmain.o -L/cygdrive/d/a/scallywag/ncurses/ncurses-6.3-1.20211106.x86_64/build/lib/.libs
> -L../lib /cygdrive/d/a/scallywag/ncurses/ncurses-6.3-1.20211106.x86_64/build/lib/.libs/libformw.dll.a /cygdrive/d/a/scallywag/ncurses/ncurses-6.3-1.20211106.x86_64/build/lib/.libs/libmenuw.dll.a /cygdrive/d/a/scallywag/ncurses/ncurses-6.3-1.20211106.x86_64/build/lib/.libs/libpanelw.dll.a
> ../lib/.libs/libformw.dll.a ../lib/.libs/libmenuw.dll.a
> ../lib/.libs/libpanelw.dll.a /cygdrive/d/a/scallywag/ncurses/ncurses-6.3-1.20211106.x86_64/build/lib/.libs/libncursesw.dll.a
> ../lib/.libs/libncursesw.dll.a -lutil -L/usr/lib/gcc/x86_64-pc-cygwin/7.4.0
> -L/usr/lib/gcc/x86_64-pc-cygwin/7.4.0/../../../../x86_64-pc-cygwin/lib/../lib
> -L/usr/lib/gcc/x86_64-pc-cygwin/7.4.0/../../../../lib -L/lib/../lib
> -L/usr/lib/../lib
> -L/usr/lib/gcc/x86_64-pc-cygwin/7.4.0/../../../../x86_64-pc-cygwin/lib
> -L/usr/lib/gcc/x86_64-pc-cygwin/7.4.0/../../.. -lstdc++ -lgcc_s -lgcc
> -lcygwin -ladvapi32 -lshell32 -luser32 -lkernel32 -lgcc_s -lgcc
> /usr/lib/gcc/x86_64-pc-cygwin/7.4.0/crtend.o  -ggdb -O2
> -fstack-protector-strong   -o .libs/cygncurses++w-10.dll
> -Wl,--enable-auto-image-base -Xlinker --out-implib -Xlinker
> .libs/libncurses++w.dll.a
> scallywag/x86_64/6_Build packages.log:2021-11-12T09:52:54.2146113Z
> /usr/lib/gcc/x86_64-pc-cygwin/11/../../../../x86_64-pc-cygwin/bin/ld: cannot
> find /usr/lib/gcc/x86_64-pc-cygwin/7.4.0/crtbeginS.o: No such file or
> directory
> scallywag/x86_64/6_Build packages.log:2021-11-12T09:52:54.4873238Z
> /usr/lib/gcc/x86_64-pc-cygwin/11/../../../../x86_64-pc-cygwin/bin/ld: cannot
> find /usr/lib/gcc/x86_64-pc-cygwin/7.4.0/crtend.o: No such file or directory
>
> --
> Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada
>
> This email may be disturbing to some readers as it contains
> too much technical detail. Reader discretion is advised.
> [Data in binary units and prefixes, physical quantities in SI.]
>
Try env | grep -E 7\.4\.0
I had a kind-of similar problem from having LIBS in the environment.
Otherwise on a freshly restored tarball before even running ./configure:
find . -type f|xargs grep -E 7\.4\.0
find . -name '*7.4.0*'
btw fgrep and egrep are retired at GNU grep 3.7

Cheers ... Duncan.