[Patch v3 07/11] configure: add optional support for gmime-3.0

[David Bremner]

This is only the changes to make configure work; it won't compile with
gmime-3.0 yet.
---
 configure | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/configure b/configure
index ed7c2280..91aeba51 100755
--- a/configure
+++ b/configure
@@ -484,8 +484,13 @@ fi
 GMIME_MINVER=2.6.7
 
 printf "Checking for GMime development files... "
-if pkg-config --exists "gmime-2.6 >= $GMIME_MINVER"; then
-    printf "Yes.\n"
+if pkg-config --exists "gmime-3.0"; then
+    printf "Yes (3.0).\n"
+    have_gmime=1
+    gmime_cflags=$(pkg-config --cflags gmime-3.0)
+    gmime_ldflags=$(pkg-config --libs gmime-3.0)
+elif pkg-config --exists "gmime-2.6 >= $GMIME_MINVER"; then
+    printf "Yes (2.6).\n"
     have_gmime=1
     gmime_cflags=$(pkg-config --cflags gmime-2.6)
     gmime_ldflags=$(pkg-config --libs gmime-2.6)
-- 
2.11.0