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-rw-r--r--configure.ac1
1 files changed, 1 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac
index 4d739c2..221b839 100644
--- a/configure.ac
+++ b/configure.ac
@@ -31,6 +31,7 @@ AC_ARG_ENABLE(glob, AS_HELP_STRING(--enable-glob, [Use glob(3) from libc]))
 dnl Checks for libraries.
 
 dnl Checks for header files.
+AC_CHECK_HEADERS(alloca.h)
 
 dnl Checks for library functions.
 AC_CHECK_FUNCS(bsearch getpwnam getrlimit imaxdiv isalpha killpg mempcpy \