gbranden pushed a commit to branch master
in repository groff.

commit d763e1e72e0877abef5b197987615e11cde9e40e
Author: G. Branden Robinson <[email protected]>
AuthorDate: Thu Aug 6 09:16:02 2026 -0500

    src/preproc/eqn/eqn.am: Annotate sed hazard.
    
    ...documented in Savannah #68601.
---
 src/preproc/eqn/eqn.am | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/preproc/eqn/eqn.am b/src/preproc/eqn/eqn.am
index 1f57443ef..725a61255 100644
--- a/src/preproc/eqn/eqn.am
+++ b/src/preproc/eqn/eqn.am
@@ -57,6 +57,8 @@ EXTRA_DIST += \
 # Since eqn_CPPFLAGS was set, all .o files have an 'eqn-' prefix.
 src/preproc/eqn/eqn-lex.$(OBJEXT): src/preproc/eqn/eqn.hpp
 
+# Note: Use two "sed"s because Busybox sed does not support combining
+# `-e` and `-f` options in the same command.
 neqn: $(top_srcdir)/src/preproc/eqn/neqn.sh $(SH_DEPS_SED_SCRIPT)
        $(AM_V_GEN)sed -f $(SH_DEPS_SED_SCRIPT) \
               $(top_srcdir)/src/preproc/eqn/neqn.sh \

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