[Bug build/22630] New: $(no-pie-ldflag) is no longer effective

["hjl.tools at gmail dot com" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=22630

            Bug ID: 22630
           Summary: $(no-pie-ldflag) is no longer effective
           Product: glibc
           Version: 2.27
            Status: NEW
          Severity: normal
          Priority: P2
         Component: build
          Assignee: unassigned at sourceware dot org
          Reporter: hjl.tools at gmail dot com
                CC: carlos at redhat dot com
  Target Milestone: ---

commit 9d7a3741c9e59eba87fb3ca6b9f979befce07826
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Fri Dec 15 16:59:33 2017 -0800

    Add --enable-static-pie configure option to build static PIE [BZ #19574]

and

commit 00c714df398b63934540d95ce3792596f7a94a6c
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Mon Dec 18 12:24:26 2017 -0800

    Pass -no-pie to GCC only if GCC defaults to PIE [BZ #22614]

$(no-pie-ldflag) is no longer effective since no-pie-ldflag is defined
to -no-pie only if GCC defaults to PIE.  When --enable-static-pie is
used to configure glibc build and GCC doesn't default to PIE. no-pie-ldflag
is undefined and these tests:

elf/Makefile:LDFLAGS-tst-dlopen-aout = $(no-pie-ldflag)
elf/Makefile:LDFLAGS-tst-prelink = $(no-pie-ldflag)
elf/Makefile:LDFLAGS-tst-main1 = $(no-pie-ldflag)
gmon/Makefile:LDFLAGS-tst-gmon := $(no-pie-ldflag)

may fail to link.

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