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-rw-r--r--gnu/packages/education.scm9
1 files changed, 7 insertions, 2 deletions
diff --git a/gnu/packages/education.scm b/gnu/packages/education.scm
index 0ba7bc6848..0d1a1c40be 100644
--- a/gnu/packages/education.scm
+++ b/gnu/packages/education.scm
@@ -921,8 +921,13 @@ endless. For example:
(file-name (git-file-name name version))
(sha256
(base32 "13q02xpmps9qg8zrzzy2gzv4a6afgi28lxk4z242j780v0gphchp"))
- (patches
- (search-patches "t4k-common-libpng16.patch"))))
+ (patches (search-patches "t4k-common-libpng16.patch"))
+ (modules '((guix build utils)))
+ (snippet
+ `(begin
+ (substitute* "src/t4k_common.h"
+ (("char wrapped_lines") "extern char wrapped_lines"))
+ #t))))
(build-system cmake-build-system)
(arguments
`(#:tests? #f ;FIXME: cannot find how to run tests