strsep: check for availability (Solaris support)

Solaris does not ship a version of the strsep() function.  This change
adds a check to "configure" to see whether notmuch needs to provide its
own implementation, and if so, it uses the new version in
"compat/strsep.c" (which was copied from Mutt, and apparently before
that from glibc).

Signed-off-by: Vladimir Marek <vlmarek@volny.cz>

1 files changed, 11 insertions, 0 deletions

diff --git a/compat/have_strsep.c b/compat/have_strsep.c
new file mode 100644
index 00000000..2abab819
--- /dev/null
+++ b/compat/have_strsep.c
@@ -0,0 +1,11 @@
+#define _GNU_SOURCE
+#include <string.h>
+
+int main()
+{
+    char *found;
+    char **stringp;
+    const char *delim;
+
+    found = strsep(stringp, delim);
+}