shithub: opusfile

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Use m4_esyscmd instead of m4_esyscmd_s

We shouldn't ever have any trailing newlines that need trimming here,
and the _s version wasn't added to m4sugar.m4 until autoconf 2.63b,
so this will let it work with 2.13 again.

--- a/configure.ac

+++ b/configure.ac

@@ -4,12 +4,12 @@

 dnl by the update_version script when configured in the repository, but will

 dnl remain constant in tarball releases unless it is manually edited.

 m4_define([CURRENT_VERSION],

-          m4_esyscmd_s([ if test -e package_version || ./update_version; then

-                             . ./package_version

-                             printf "$PACKAGE_VERSION"

-                         else

-                             printf "unknown"

-                         fi ]))

+          m4_esyscmd([ if test -e package_version || ./update_version; then

+                           . ./package_version

+                           printf "$PACKAGE_VERSION"

+                       else

+                           printf "unknown"

+                       fi ]))

 AC_INIT([opusfile],[CURRENT_VERSION],[opus@xiph.org])

 AC_CONFIG_SRCDIR([src/opusfile.c])