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build: only update config-extra.h if it changes

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This is to avoid updating config-extra.h timestamp very time one touches
Makefile.am, because it has a large dependency chain and makes
debugging of the Makefile inconvenient.

https://gitlab.freedesktop.org/NetworkManager/NetworkManager/merge_requests/180
This commit is contained in:
Lubomir Rintel 2019-06-11 15:08:51 +02:00
parent a646be6509
commit 14271d84a0
1 changed files with 19 additions and 19 deletions
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38
Makefile.am
View file

@ -111,25 +111,25 @@ dflt_cppflags = -std=gnu11
# With meson-only, they could just be set via config.h.meson
config-extra.h: Makefile
$(AM_V_GEN) \
echo "/* Generated by Makefile.am */" >$@ && \
echo "#define BINDIR \"$(bindir)\"" >>$@ && \
echo "#define DATADIR \"$(datadir)\"" >>$@ && \
echo "#define LIBEXECDIR \"$(libexecdir)\"" >>$@ && \
echo "#define LOCALSTATEDIR \"$(localstatedir)\"" >>$@ && \
echo "#define NMCONFDIR \"$(nmconfdir)\"" >>$@ && \
echo "#define NMLIBDIR \"$(nmlibdir)\"" >>$@ && \
echo "#define NMLOCALEDIR \"$(nmlocaledir)\"" >>$@ && \
echo "#define NMPLUGINDIR \"$(plugindir)\"" >>$@ && \
echo "#define NMRUNDIR \"$(nmrundir)\"" >>$@ && \
echo "#define NMSTATEDIR \"$(nmstatedir)\"" >>$@ && \
echo "#define NMVPNDIR \"$(pkglibdir)\"" >>$@ && \
echo "#define NM_BUILD_BUILDDIR \"$(abs_builddir)\"" >>$@ && \
echo "#define NM_BUILD_SRCDIR \"$(abs_srcdir)\"" >>$@ && \
echo "#define PPPD_PLUGIN_DIR \"$(PPPD_PLUGIN_DIR)\"" >>$@ && \
echo "#define PREFIX \"$(prefix)\"" >>$@ && \
echo "#define RUNSTATEDIR \"$(runstatedir)\"" >>$@ && \
echo "#define SYSCONFDIR \"$(sysconfdir)\"" >>$@ && \
true
echo "/* Generated by Makefile.am */" >$@.tmp && \
echo "#define BINDIR \"$(bindir)\"" >>$@.tmp && \
echo "#define DATADIR \"$(datadir)\"" >>$@.tmp && \
echo "#define LIBEXECDIR \"$(libexecdir)\"" >>$@.tmp && \
echo "#define LOCALSTATEDIR \"$(localstatedir)\"" >>$@.tmp && \
echo "#define NMCONFDIR \"$(nmconfdir)\"" >>$@.tmp && \
echo "#define NMLIBDIR \"$(nmlibdir)\"" >>$@.tmp && \
echo "#define NMLOCALEDIR \"$(nmlocaledir)\"" >>$@.tmp && \
echo "#define NMPLUGINDIR \"$(plugindir)\"" >>$@.tmp && \
echo "#define NMRUNDIR \"$(nmrundir)\"" >>$@.tmp && \
echo "#define NMSTATEDIR \"$(nmstatedir)\"" >>$@.tmp && \
echo "#define NMVPNDIR \"$(pkglibdir)\"" >>$@.tmp && \
echo "#define NM_BUILD_BUILDDIR \"$(abs_builddir)\"" >>$@.tmp && \
echo "#define NM_BUILD_SRCDIR \"$(abs_srcdir)\"" >>$@.tmp && \
echo "#define PPPD_PLUGIN_DIR \"$(PPPD_PLUGIN_DIR)\"" >>$@.tmp && \
echo "#define PREFIX \"$(prefix)\"" >>$@.tmp && \
echo "#define RUNSTATEDIR \"$(runstatedir)\"" >>$@.tmp && \
echo "#define SYSCONFDIR \"$(sysconfdir)\"" >>$@.tmp && \
if cmp $@ $@.tmp; then rm $@.tmp; else mv $@.tmp $@; fi
DISTCLEANFILES += config-extra.h