From 8e2ce83987d26077d28bd26342100683ea35d2f1 Mon Sep 17 00:00:00 2001
From: Aleix Pol <aleixpol@kde.org>
Date: Wed, 11 Apr 2018 20:20:19 +0200
Subject: Check if the application androiddeployqt package has a main() symbol

Summary:
Back in the KDE Edu sprint, we decided we need such a check, otherwise
you get rather frustrated when the application isn't started. A patch to
androiddeployqt was submitted but rejected by the maintainer.
https://codereview.qt-project.org/#/c/207941/

Test Plan: kate doesn't build if we don't pass Q_DECL_EXPORT, builds if we do.

Reviewers: #frameworks, #build_system, vkrause

Reviewed By: vkrause

Subscribers: vkrause, vatra, aacid

Tags: #frameworks, #build_system

Differential Revision: https://phabricator.kde.org/D12120
---
 toolchain/hasMainSymbol.cmake | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 toolchain/hasMainSymbol.cmake

(limited to 'toolchain/hasMainSymbol.cmake')

diff --git a/toolchain/hasMainSymbol.cmake b/toolchain/hasMainSymbol.cmake
new file mode 100644
index 00000000..9a041e73
--- /dev/null
+++ b/toolchain/hasMainSymbol.cmake
@@ -0,0 +1,10 @@
+execute_process(COMMAND nm --dynamic ${TARGET} ERROR_VARIABLE nm_errors OUTPUT_VARIABLE out RESULT_VARIABLE result)
+
+if (NOT result EQUAL 0)
+    message(FATAL_ERROR "nm failed on ${TARGET} exit(${result}): ${nm_errors}")
+endif()
+
+string(FIND ${out} " T main\n" found)
+if(found LESS 0)
+    message(FATAL_ERROR "Could not find a main() symbol on ${TARGET}")
+endif()
-- 
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