62/66: gnu: texlive-fonts-latex: Use invoke.

[Mark H. Weaver]

mhw pushed a commit to branch core-updates
in repository guix.

commit 806faaabd12c5d68f2a37e13ab53fdd69cfa7850
Author: Mark H Weaver <address@hidden>
Date:   Fri Mar 23 04:06:57 2018 -0400

    gnu: texlive-fonts-latex: Use invoke.
    
    * gnu/packages/tex.scm (texlive-fonts-latex)[arguments]: Use invoke and 
remove
    vestigial plumbing from the build phase.
---
 gnu/packages/tex.scm | 29 +++++++++++++++--------------
 1 file changed, 15 insertions(+), 14 deletions(-)

diff --git a/gnu/packages/tex.scm b/gnu/packages/tex.scm
index 056039b..143ea2d 100644
--- a/gnu/packages/tex.scm
+++ b/gnu/packages/tex.scm
@@ -694,20 +694,21 @@ fonts.")
                                       (assoc-ref inputs "texlive-fonts-cm")
                                       
"/share/texmf-dist/fonts/source/public/cm")))
              (mkdir "build")
-             (every (lambda (font)
-                      (format #t "building font ~a\n" font)
-                      (zero? (system* "mf" "-progname=mf"
-                                      "-output-directory=build"
-                                      (string-append "\\"
-                                                     "mode:=ljfour; "
-                                                     "mag:=1; "
-                                                     "batchmode; "
-                                                     "input " font))))
-                    '("icmcsc10" "icmex10" "icmmi8" "icmsy8" "icmtt8"
-                      "ilasy8" "ilcmss8" "ilcmssb8" "ilcmssi8"
-                      "lasy5" "lasy6" "lasy7" "lasy8" "lasy9" "lasy10" 
"lasyb10"
-                      "lcircle10" "lcirclew10" "lcmss8" "lcmssb8" "lcmssi8"
-                      "line10" "linew10"))))
+             (for-each (lambda (font)
+                         (format #t "building font ~a\n" font)
+                         (invoke "mf" "-progname=mf"
+                                 "-output-directory=build"
+                                 (string-append "\\"
+                                                "mode:=ljfour; "
+                                                "mag:=1; "
+                                                "batchmode; "
+                                                "input " font)))
+                       '("icmcsc10" "icmex10" "icmmi8" "icmsy8" "icmtt8"
+                         "ilasy8" "ilcmss8" "ilcmssb8" "ilcmssi8"
+                         "lasy5" "lasy6" "lasy7" "lasy8" "lasy9" "lasy10" 
"lasyb10"
+                         "lcircle10" "lcirclew10" "lcmss8" "lcmssb8" "lcmssi8"
+                         "line10" "linew10"))
+             #t))
          (replace 'install
            (lambda* (#:key outputs #:allow-other-keys)
              (let* ((out (assoc-ref outputs "out"))