[groff] 08/35: [tmac]: Avoid test failures on Solaris 11.

[G. Branden Robinson]

gbranden pushed a commit to branch master
in repository groff.

commit 4f9c484dcc9f8a587c3d6bc4eac6de9561479bee
Author: G. Branden Robinson <g.branden.robinson@gmail.com>
AuthorDate: Fri Dec 6 23:47:18 2024 -0600

    [tmac]: Avoid test failures on Solaris 11.
    
    ...arising from system tool limitations.  See "PROBLEMS" file.
    
    * tmac/tests/an_vertical-margins-are-correct.sh:
    * tmac/tests/doc-old_vertical-margins-are-correct.sh:
    * tmac/tests/doc_vertical-margins-are-correct.sh: Skip test if
      the system lacks a grep conforming to POSIX Issue 4 (1994).
---
 ChangeLog                                          | 10 ++++++++++
 tmac/tests/an_vertical-margins-are-correct.sh      |  6 ++++++
 tmac/tests/doc-old_vertical-margins-are-correct.sh |  6 ++++++
 tmac/tests/doc_vertical-margins-are-correct.sh     |  6 ++++++
 4 files changed, 28 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index 31821d7db..5436b213a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -31,6 +31,16 @@
        Fixes <https://savannah.gnu.org/bugs/?66537> thanks to
        Bjarni Ingi Gislason for the report and solution.
 
+2024-12-06  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+       Avoid test failures on Solaris 11 arising from system tool
+       limitations.  See "PROBLEMS" file.
+
+       * tmac/tests/an_vertical-margins-are-correct.sh:
+       * tmac/tests/doc-old_vertical-margins-are-correct.sh:
+       * tmac/tests/doc_vertical-margins-are-correct.sh: Skip test if
+       the system lacks a grep conforming to POSIX Issue 4 (1994).
+
 2024-12-06  G. Branden Robinson <g.branden.robinson@gmail.com>
 
        * src/roff/troff/env.cpp (do_error): Fix off-by-one error in
diff --git a/tmac/tests/an_vertical-margins-are-correct.sh 
b/tmac/tests/an_vertical-margins-are-correct.sh
index 666ea3793..47945d048 100755
--- a/tmac/tests/an_vertical-margins-are-correct.sh
+++ b/tmac/tests/an_vertical-margins-are-correct.sh
@@ -20,6 +20,12 @@
 
 groff="${abs_top_builddir:-.}/test-groff"
 
+if ! echo foobar | grep -Eqx foobar >/dev/null 2>&1
+then
+    echo "$0: grep command does not support -Eqx options; skipping" >&2
+    exit 77 # skip
+fi
+
 fail=
 
 wail () {
diff --git a/tmac/tests/doc-old_vertical-margins-are-correct.sh 
b/tmac/tests/doc-old_vertical-margins-are-correct.sh
index 948f00fef..78f667f70 100755
--- a/tmac/tests/doc-old_vertical-margins-are-correct.sh
+++ b/tmac/tests/doc-old_vertical-margins-are-correct.sh
@@ -20,6 +20,12 @@
 
 groff="${abs_top_builddir:-.}/test-groff"
 
+if ! echo foobar | grep -Eqx foobar >/dev/null 2>&1
+then
+    echo "$0: grep command does not support -Eqx options; skipping" >&2
+    exit 77 # skip
+fi
+
 fail=
 
 wail () {
diff --git a/tmac/tests/doc_vertical-margins-are-correct.sh 
b/tmac/tests/doc_vertical-margins-are-correct.sh
index 00a27485a..21b9d3169 100755
--- a/tmac/tests/doc_vertical-margins-are-correct.sh
+++ b/tmac/tests/doc_vertical-margins-are-correct.sh
@@ -20,6 +20,12 @@
 
 groff="${abs_top_builddir:-.}/test-groff"
 
+if ! echo foobar | grep -Eqx foobar >/dev/null 2>&1
+then
+    echo "$0: grep command does not support -Eqx options; skipping" >&2
+    exit 77 # skip
+fi
+
 fail=
 
 wail () {