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build: Fix cross-compilation in out-of-tree-builds

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gen-scmconfig.h is generated in libguile, not $(top_builddir).

* libguile/Makefile.am: Add '-I.' when compiling gen-scmconfig.o.

Signed-off-by: Ludovic Courtès <ludo@gnu.org>
This commit is contained in:
Jonas Hahnfeld 2024-02-22 22:10:06 +01:00 • committed by Ludovic Courtès
parent ebcc9d1e3a
commit 57a889b728
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1 changed files with 5 additions and 4 deletions
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9
libguile/Makefile.am
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@ -62,14 +62,15 @@ gen_scmconfig_SOURCES = gen-scmconfig.c
## Override default rule; this should be compiled for BUILD host. Note
## that we don't add $(AM_CPPFLAGS) here, as we need to run this
## program, but $(top_srcdir)/lib has a gnulib configured for the
## target. Instead we manually add $(top_builddir), in order to pick up
## the generated config.h and gen-scmconfig.h. Nothing else from Guile
## is included by this code generator.
## target. Instead we manually add $(top_builddir) and the current
## directory, in order to pick up the generated config.h and
## gen-scmconfig.h. Nothing else from Guile is included by this code
## generator.
gen-scmconfig.$(OBJEXT): gen-scmconfig.c
$(AM_V_GEN) \
if [ "$(cross_compiling)" = "yes" ]; then \
$(CC_FOR_BUILD) $(DEFS) $(DEFAULT_INCLUDES) -I$(top_builddir) \
-c -o $@ $<; \
-I. -c -o $@ $<; \
else \
$(COMPILE) -c -o $@ $<; \
fi