Re: Error when building gcc w/ Go language on Solaris

[Ian Lance Taylor <iant@golang.org>]

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On Tue, Apr 19, 2022 at 6:36 AM Jonathan Wakely <jwakely.gcc@gmail.com> wrote:
>
> The 'check-tail' target in libgo/Makefile.am does:
>
> ...  | sed -n -e 's/.* \(version.*$$\)/\1/p'` >> libgo.sum
>
> This doesn't work with Solaris sed (and is documented by Autoconf as
> being non-portable). The $ needs to be outside the back-reference
> expression:
>
> ...  | sed -n -e 's/.* \(version.*\)$$/\1/p'` >> libgo.sum
>
> This should be OK to change, because the $ is just an anchor and
> doesn't need to be captured.
>
> More significantly, I see errors like:
>
> /export/home/jwakely/src/gcc/libgo/match.sh: line 114: ((: go1.13 :
> syntax error: invalid arithmetic operator (error token is ".13 ")
>
> That script uses \+ in a sed script, which is not supported by POSIX
> sed, because it's not in the BRE grammar. That seems to be the cause
> of the match.sh errors. The attached patch fixes it.

Thanks for looking.  Committed to mainline like so.

Ian

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75f7b65d3f775f06be08c5d2a9573b49a4b4b1d5
diff --git a/gcc/go/gofrontend/MERGE b/gcc/go/gofrontend/MERGE
index 2321f67ca5d..63238715bd0 100644
--- a/gcc/go/gofrontend/MERGE
+++ b/gcc/go/gofrontend/MERGE
@@ -1,4 +1,4 @@
-22b0ccda3aa4d16f770a26a3eb251f8da615c318
+99ca6be406a5781be078ff23f45a72b4c84b16e3
 
 The first line of this file holds the git revision number of the last
 merge done from the gofrontend repository.
diff --git a/libgo/Makefile.am b/libgo/Makefile.am
index e0a1eec52a2..a5d4b6a3525 100644
--- a/libgo/Makefile.am
+++ b/libgo/Makefile.am
@@ -1305,7 +1305,7 @@ check-tail: check-recursive check-multi
 	if test "$$untested" -ne "0"; then \
 	  echo "# of untested testcases		$$untested" >> libgo.sum; \
 	fi; \
-	echo `echo $(GOC) | sed -e 's/ .*//'`  `$(GOC) -v 2>&1 | grep " version" | sed -n -e 's/.* \(version.*$$\)/\1/p'` >> libgo.sum; \
+	echo `echo $(GOC) | sed -e 's/ .*//'`  `$(GOC) -v 2>&1 | grep " version" | sed -n -e 's/.* \(version.*\)$$/\1/p'` >> libgo.sum; \
 	echo >> libgo.log; \
 	echo "runtest completed at `date`" >> libgo.log; \
 	if test "$$fail" -ne "0"; then \
diff --git a/libgo/match.sh b/libgo/match.sh
index 139d0cdbe64..7ed587ff794 100755
--- a/libgo/match.sh
+++ b/libgo/match.sh
@@ -100,7 +100,7 @@ fi
 
 gobuild() {
     line=$(echo "$1" | sed -e 's|//go:build ||')
-    line=$(echo "$line" | sed -e 's/go1\.[0-9]\+/1/g' -e 's/goexperiment\./goexperiment/')
+    line=$(echo "$line" | sed -e 's/go1\.[0-9][0-9]*/1/g' -e 's/goexperiment\./goexperiment/')
     line=" $line "
     wrap='[ ()!&|]'
     for ones in $goarch $goos $cgotag $cmdlinetag gccgo goexperimentfieldtrack; do