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$NetBSD: patch-lib_mkmf.rb,v 1.1 2020/03/15 15:26:22 taca Exp $
* Avoid to generate empty command line on some platforms.
* Make compatible processing dependency output as Ruby 2.6.
$(DLLIB): $(OBJS) Makefile
...
$(Q) $(POSTLINK)
And POSTLINK is empty macro. In such case, GNU make ignore empty command
line but BSD make tries to execute it and causes error.
--- lib/mkmf.rb.orig 2019-12-25 09:50:58.000000000 +0000
+++ lib/mkmf.rb
@@ -2023,6 +2023,7 @@ LDSHARED = #{CONFIG['LDSHARED']}
LDSHAREDXX = #{config_string('LDSHAREDXX') || '$(LDSHARED)'}
AR = #{CONFIG['AR']}
EXEEXT = #{CONFIG['EXEEXT']}
+POSTLINK = #{CONFIG['POSTLINK']}
}
CONFIG.each do |key, val|
@@ -2134,6 +2135,7 @@ RULES
line.gsub!(/\.o\b/, ".#{$OBJEXT}")
line.gsub!(/\{\$\(VPATH\)\}/, "") unless $nmake
line.gsub!(/\$\((?:hdr|top)dir\)\/config.h/, $config_h)
+ line.gsub!(%r"\$\(hdrdir\)/(?!ruby(?![^:;/\s]))(?=[-\w]+\.h)", '\&ruby/')
if $nmake && /\A\s*\$\(RM|COPY\)/ =~ line
line.gsub!(%r"[-\w\./]{2,}"){$&.tr("/", "\\")}
line.gsub!(/(\$\((?!RM|COPY)[^:)]+)(?=\))/, '\1:/=\\')
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