gbranden pushed a commit to branch master
in repository groff.
commit 96b8274a900d91a53c3bf570d82234be6506204a
Author: G. Branden Robinson <[email protected]>
AuthorDate: Wed Oct 14 08:06:03 2026 -0500
m4/groff.m4: Fix Savannah #68775.
* m4/groff.m4 (GROFF_G): Fix logic botch; we were treating the total
absence of an installed `troff` from the build environment as
equivalent to a groff-incompatible one being present. That was
incorrect. Do not apply a command prefix when no troff is present.
Fixes <https://savannah.gnu.org/bugs/?68775>. Thanks to Alexis
Hildebrandt for the report. Problem introduced by me in commit
142b8d93fc, 8 October.
---
ChangeLog | 12 ++++++++++++
m4/groff.m4 | 16 ++++++++++------
2 files changed, 22 insertions(+), 6 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index 9ad781f8d..ea01a699d 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,15 @@
+2026-10-14 G. Branden Robinson <[email protected]>
+
+ * m4/groff.m4 (GROFF_G): Fix logic botch; we were treating the
+ total absence of an installed `troff` from the build
+ environment as equivalent to a groff-incompatible one being
+ present. That was incorrect. Do not apply a command prefix
+ when no troff is present.
+
+ Fixes <https://savannah.gnu.org/bugs/?68775>. Thanks to Alexis
+ Hildebrandt for the report. Problem introduced by me in commit
+ 142b8d93fc, 8 October.
+
2026-10-13 G. Branden Robinson <[email protected]>
* src/utils/afmtodit/afmtodit.tables: Regenerate using Unicode
diff --git a/m4/groff.m4 b/m4/groff.m4
index e4b952c97..e16ff3dea 100644
--- a/m4/groff.m4
+++ b/m4/groff.m4
@@ -1064,15 +1064,19 @@ AC_DEFUN([GROFF_TMAC],
# alongside the system's is desired.
AC_DEFUN([GROFF_G], [
g=
- AC_MSG_CHECKING([for an installed groff-incompatible troff])
- if test "`(echo .tm '|n(.g' | tr '|' '\\\\' | troff -z -i 2>&1) \
- 2>/dev/null`" = 1
+ AC_MSG_CHECKING([whether a groff-incompatible troff is installed])
+ if test -n "`command -v troff`" \
+ && test "`(echo .tm '|n(.g' | tr '|' '\\\\' | troff -z -i 2>&1) \
+ 2>/dev/null`" != 1
then
- AC_MSG_RESULT([no])
- else
- AC_MSG_RESULT([yes])
g=g
fi
+ if test "$g" = "g"
+ then
+ AC_MSG_RESULT([yes])
+ else
+ AC_MSG_RESULT([no])
+ fi
AC_SUBST([g])
])
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