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-rw-r--r--gnu/packages/maths.scm10
1 files changed, 10 insertions, 0 deletions
diff --git a/gnu/packages/maths.scm b/gnu/packages/maths.scm
index 5a06afa220..38beb88d0a 100644
--- a/gnu/packages/maths.scm
+++ b/gnu/packages/maths.scm
@@ -2719,6 +2719,8 @@ in finite element programs.")
(base32
"022w8hph7bli5zbpnk3z1qh1c2sl5hm8fw2ccim651ynn0hr7fyz"))))
(build-system cmake-build-system)
+ (outputs '("out"
+ "octave")) ;46 MiB .mex file that pulls Octave
(native-inputs
`(("unzip" ,unzip)))
(inputs
@@ -2736,6 +2738,14 @@ in finite element programs.")
;; Save 12 MiB by not installing .a files. Passing
;; '-DBUILD_STATIC_LIBS=OFF' has no effect.
#:phases (modify-phases %standard-phases
+ (add-before 'configure 'set-octave-directory
+ (lambda* (#:key outputs #:allow-other-keys)
+ ;; Install the .mex file in the "octave" output.
+ (let ((out (assoc-ref outputs "octave")))
+ (substitute* "src/matlab/CMakeLists.txt"
+ (("share/flann/octave")
+ (string-append out "/share/flann/octave")))
+ #t)))
(add-after 'install 'remove-static-libraries
(lambda* (#:key outputs #:allow-other-keys)
(let* ((out (assoc-ref outputs "out"))