[PATCH] meson: fix perl detection when docs are enabled, but perl bindings aren't

From: Eli Schwartz <eschwartz@gentoo.org>
Date: Mar 16, 2025, 06:06 UTC
Message-ID: <20250316060605.166364-1-eschwartz@gentoo.org>

The `perl` variable in meson.build is assigned to a program lookup, which may have the value "not-found object" if configuring with `-Dperl=disabled`.

There is already a list of other cases where we do need a perl command, even when not building perl bindings. Building documentation should be one of those cases, but was missing from the list. Add it.

Fixes:

``` $ meson setup builddir/ -Ddocs=man -Dperl=disabled -Dtests=false [...] Documentation/meson.build:308:22: ERROR: Tried to use not-found external program in "command" ```

Bug: https://bugs.gentoo.org/949247
Signed-off-by: Eli Schwartz <eschwartz@gentoo.org>
---
 meson.build | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/meson.build b/meson.build
index efe2871c9d..c6241c7a12 100644
--- a/meson.build
+++ b/meson.build
@@ -772,7 +772,7 @@ endif
 # features. It is optional if you want to neither execute tests nor use any of
 # these optional features.
 perl_required = get_option('perl')
-if get_option('tests') or get_option('gitweb').enabled() or 'netrc' in get_option('credential_helpers')
+if get_option('tests') or get_option('gitweb').enabled() or 'netrc' in get_option('credential_helpers') or get_option('docs') != []
   perl_required = true
 endif

-- 
2.48.1