[MacPorts] CompilerEnvironmentVariables modified

[MacPorts Wiki]

Page "CompilerEnvironmentVariables" was changed by MarcusCalhoun-Lopez
Diff URL: <https://trac.macports.org/wiki/CompilerEnvironmentVariables?action=diff&version=14>
Revision 14
Changes:
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Index: CompilerEnvironmentVariables
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--- CompilerEnvironmentVariables (version: 13)
+++ CompilerEnvironmentVariables (version: 14)
@@ -23,6 +23,7 @@
 To a limited extent, the behavior of compilers can also be controlled with [https://en.wikipedia.org/wiki/Environment_variable environment variables] instead of switches.
 ||= Switch =||= Variable =||= Affect =||= Notes =||
 || `-I` || CPATH || treated as a delimited list of paths to be added to the default system include path list || ||
+|| `-isystem` || C_INCLUDE_PATH, OBJC_INCLUDE_PATH, CPLUS_INCLUDE_PATH, OBJCPLUS_INCLUDE_PATH || like CPATH except only used when processing the appropriate language || ||
 || `-L` || LIBRARY_PATH || tries the directories specified when searching for special linker files  || ||
 || `-mmacosx-version-min` || MACOSX_DEPLOYMENT_TARGET || the default deployment target  || ||
 || `-isysroot`, `-Wl,-syslibroot` || SDKROOT || specifies the SDK  || ||
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Page URL: <https://trac.macports.org/wiki/CompilerEnvironmentVariables>
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