Better support for compiling with system libraries (#1447)

2019-12-29 12:47:15 +01:00
parent 443aba3f9c
commit 2cb2f679c2
5 changed files with 70 additions and 4 deletions
@@ -1,4 +1,18 @@
 # fmt
-SOURCES += $$PWD/fmt/fmt/format.cpp
+# Chatterino2 is tested with FMT 4.0
+# Exposed build flags:
+#  - FMT_PREFIX ($$PWD by default)
+#  - FMT_SYSTEM (1 = true) (Linux only, uses pkg-config)

-INCLUDEPATH += $$PWD/fmt/
+!defined(FMT_PREFIX) {
+    FMT_PREFIX = $$PWD
+}
+
+linux:equals(FMT_SYSTEM, "1") {
+    message("Building with system FMT")
+    PKGCONFIG += fmt
+} else {
+    SOURCES += $$FMT_PREFIX/fmt/fmt/format.cpp
+
+    INCLUDEPATH += $$PWD/fmt/
+}