mirror of https://github.com/microsoft/vcpkg.git
33 lines
781 B
Diff
33 lines
781 B
Diff
diff --git a/configure.ac b/configure.ac
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index 9f30d29..29737da 100644
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--- a/configure.ac
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+++ b/configure.ac
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@@ -120,6 +120,14 @@ AC_C_INLINE
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# libtool
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AC_PROG_CXX
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+if "$os_win32" = "true"; then
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+ if test "$enable_shared" = "yes"; then
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+ AC_DEFINE(DLLBUILD, [], [Building a DLL])
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+ else
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+ AC_DEFINE(STATIC_LIBMODBUS, [], [Building a static library])
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+ fi
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+fi
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+
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# Various types
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AC_TYPE_INT64_T
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AC_TYPE_SIZE_T
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diff --git a/src/modbus.h b/src/modbus.h
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index fa7ec4a..ae204ce 100644
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--- a/src/modbus.h
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+++ b/src/modbus.h
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@@ -25,6 +25,8 @@
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# if defined(DLLBUILD)
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/* define DLLBUILD when building the DLL */
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# define MODBUS_API __declspec(dllexport)
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+# elif defined(STATIC_LIBMODBUS)
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+# define MODBUS_API
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# else
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# define MODBUS_API __declspec(dllimport)
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# endif
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