fix(build): include directory using -iquote instead of -I
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On macos, the compiler is doing a case-insensitive search for a `version` header file, included with `#include <version>` in the macos sdk. Using `-I` causes `vendor/libnatpmp-upstream` to be included in the system header search path, so the compiler picks up `vendor/libnatpmp-upstream/VERSION`, causing a compilation error: ``` vendor/nim-nat-traversal/vendor/libnatpmp-upstream/version:1:1: error: expected unqualified-id 20120821 ``` The gcc 14.2 docs describe how `-iquote` alleviates this issue (https://gcc.gnu.org/onlinedocs/gcc-14.2.0/cpp/Invocation.html#index-I): "Directories specified with -iquote apply only to the quote form of the directive, #include "file". Directories specified with -I, -isystem, or -idirafter apply to lookup for both the #include "file" and #include <file> directives." An alternative option is put files needed to be included in an `/include` directory, and use `-I` with that directory. An example of this is explained in https://stackoverflow.com/a/53155014. More info can be found in similar issues: - the-tcpdump-group/libpcap#1331 - the-tcpdump-group/libpcap#1100 - the-tcpdump-group/libpcap#1043 - nmap/nmap#2747
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- removes the `VERSION` rename to `VERSION_temp` in the Makefile - instead, relies on `-iqoute` to include the `nim-nat-traversal/vendor/libnatpmp-upstream` directory in the search paths. `-iquote` will match the `vendor/libnatpmp-upstream/VERSION` file for `#include "version"` and not `#include <version>`, the latter being what is included by the macos sdk and was causing issues with `-I`. The [gcc 14.2 docs](https://gcc.gnu.org/onlinedocs/gcc-14.2.0/cpp/Invocation.html#index-I) describe how `-iquote` alleviates this issue: > Directories specified with -iquote apply only to the quote form of the directive, #include "file". Directories specified with -I, -isystem, or -idirafter apply to lookup for both the #include "file" and #include <file> directives. For more info, please see status-im/nim-nat-traversal#34.
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On macos, the compiler is doing a case-insensitive search for a
versionheader file, included with#include <version>in the macos sdk. Using-Icausesvendor/libnatpmp-upstreamto be included in the system header search path, so the compiler picks upvendor/libnatpmp-upstream/VERSION, causing a compilation error:The gcc 14.2 docs describe how
-iquotealleviates this issue:An alternative option is put files needed to be included in an
/includedirectory, and use-Iwith that directory. An example of this is explained in https://stackoverflow.com/a/53155014.More info can be found in similar issues: