gbranden pushed a commit to branch master
in repository groff.
commit b8f88aaad8ceb83617cf119be2dc263a0c0dfcff
Author: G. Branden Robinson <[email protected]>
AuthorDate: Sun May 31 06:01:52 2026 -0500
[eqn]: Fix code style nit. (2/2)
* src/preproc/eqn/lex.cpp: Add `extern` declarations of `yylex()` and
`yyerror()` since--as I understand it--there is still no standard
header file that prototypes them.
Fixes `-Wmissing-declarations` GCC warning.
---
ChangeLog | 8 ++++++--
src/preproc/eqn/lex.cpp | 4 ++++
2 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/ChangeLog b/ChangeLog
index 4b7e73625..ed9d09f84 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -10,8 +10,12 @@
(do_gifont, do_grfont, do_gbfont, do_space, do_ifdef, do_delim)
(do_chartype, do_set, do_reset):
* src/preproc/eqn/text.cpp (special_to_entity): Define functions
- as `static`; external linkage is not required. Also fixes
- `-Wmissing-declarations` GCC warning.
+ as `static`; external linkage is not required.
+ * src/preproc/eqn/lex.cpp: Add `extern` declarations of
+ `yylex()` and `yyerror()` since--as I understand it--there is
+ still no standard header file that prototypes them.
+
+ Fixes `-Wmissing-declarations` GCC warning.
2026-05-30 G. Branden Robinson <[email protected]>
diff --git a/src/preproc/eqn/lex.cpp b/src/preproc/eqn/lex.cpp
index 392cd734b..4e2370a1d 100644
--- a/src/preproc/eqn/lex.cpp
+++ b/src/preproc/eqn/lex.cpp
@@ -1175,6 +1175,8 @@ static void do_reset()
reset_param(param.contents());
}
+extern int yylex(void);
+
int yylex()
{
for (;;) {
@@ -1262,6 +1264,8 @@ void lex_error(const char *message,
arg3);
}
+extern void yyerror(const char *);
+
void yyerror(const char *s)
{
char *filename;
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