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-rw-r--r--src/3rdparty/zlib/zconf.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/3rdparty/zlib/zconf.h b/src/3rdparty/zlib/zconf.h
index 806a51e28c..06e7786cdf 100644
--- a/src/3rdparty/zlib/zconf.h
+++ b/src/3rdparty/zlib/zconf.h
@@ -8,6 +8,9 @@
#ifndef ZCONF_H
#define ZCONF_H
+/* Since QtCore must export these symbols, define Z_PREFIX to avoid clashes system zlib */
+#define Z_PREFIX
+
/*
* If you *really* need a unique prefix for all types and library functions,
* compile with -DZ_PREFIX. The "standard" zlib should be compiled without it.