Makefile: add PERLLIB_EXTRA variable that adds to default perl path

diff --git a/Makefile b/Makefile
index e5e7868c6a45731e54047b8f20a4426d0f435e2d..67f1754903b9220c19597f17f26e03a58681dfd2 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -1588,6 +1588,7 @@ PERL_PATH_SQ = $(subst ','\'',$(PERL_PATH))
 PYTHON_PATH_SQ = $(subst ','\'',$(PYTHON_PATH))
 TCLTK_PATH_SQ = $(subst ','\'',$(TCLTK_PATH))
 DIFF_SQ = $(subst ','\'',$(DIFF))
+PERLLIB_EXTRA_SQ = $(subst ','\'',$(PERLLIB_EXTRA))
 
 LIBS = $(GITLIBS) $(EXTLIBS)
 
@@ -1792,10 +1793,12 @@ perl/PM.stamp: FORCE
 perl/perl.mak: GIT-CFLAGS GIT-PREFIX perl/Makefile perl/Makefile.PL
        $(QUIET_SUBDIR0)perl $(QUIET_SUBDIR1) PERL_PATH='$(PERL_PATH_SQ)' prefix='$(prefix_SQ)' $(@F)
 
-PERL_DEFINES = $(PERL_PATH_SQ)
+PERL_DEFINES = $(PERL_PATH_SQ):$(PERLLIB_EXTRA_SQ)
 $(patsubst %.perl,%,$(SCRIPT_PERL)): % : %.perl perl/perl.mak GIT-PERL-DEFINES GIT-VERSION-FILE
        $(QUIET_GEN)$(RM) $@ $@+ && \
        INSTLIBDIR=`MAKEFLAGS= $(MAKE) -C perl -s --no-print-directory instlibdir` && \
+       INSTLIBDIR_EXTRA='$(PERLLIB_EXTRA_SQ)' && \
+       INSTLIBDIR="$$INSTLIBDIR$${INSTLIBDIR_EXTRA:+:$$INSTLIBDIR_EXTRA}" && \
        sed -e '1{' \
            -e '        s|#!.*perl|#!$(PERL_PATH_SQ)|' \
            -e '        h' \