master 19e7256: Fix build with native compilation on Cygwin

[Ken Brown]

branch: master
commit 19e72564b25ed00001ee25995df6fa1f049d45ff
Author: Ken Brown <kbrown@cornell.edu>
Commit: Ken Brown <kbrown@cornell.edu>

    Fix build with native compilation on Cygwin
    
    * src/Makefile.in (emacs$(EXEEXT)) [CYGWIN]: Rebase the *.eln
    files after they are all created, to avoid fork problems later
    in the build.  (Bug#50666)
---
 src/Makefile.in | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/Makefile.in b/src/Makefile.in
index 732cd8f..bb69a65 100644
--- a/src/Makefile.in
+++ b/src/Makefile.in
@@ -547,6 +547,8 @@ ${charscript}: FORCE
 
 ${lispintdir}/characters.elc: ${charscript:.el=.elc}
 
+SYSTEM_TYPE = @SYSTEM_TYPE@
+
 ## The dumped Emacs is as functional and more efficient than
 ## bootstrap-emacs, so we replace the latter with the former.
 ## Strictly speaking, emacs does not depend directly on all of $lisp,
@@ -555,6 +557,9 @@ ${lispintdir}/characters.elc: ${charscript:.el=.elc}
 emacs$(EXEEXT): temacs$(EXEEXT) \
                 lisp.mk $(etc)/DOC $(lisp) \
                 $(lispsource)/international/charprop.el ${charsets}
+ifeq ($(SYSTEM_TYPE),cygwin)
+       find ${top_builddir} -name '*.eln' | rebase -v -O -T -
+endif
 ifeq ($(DUMPING),unexec)
        LC_ALL=C $(RUN_TEMACS) -batch $(BUILD_DETAILS) -l loadup --temacs=dump
   ifneq ($(PAXCTL_dumped),)