[MacPorts] #62368: macports.sqlext @2.6.3: error: C compiler cannot create executables

[MacPorts]

#62368: macports.sqlext @2.6.3: error: C compiler cannot create executables
------------------------+-----------------------------
 Reporter:  ryandesign  |      Owner:  (none)
     Type:  defect      |     Status:  new
 Priority:  Normal      |  Milestone:
Component:  ports       |    Version:  2.6.99
 Keywords:              |       Port:  macports.sqlext
------------------------+-----------------------------
 macports.sqlext configuration fails when `configureccache yes` is set in
 macports.conf:
 {{{
 checking build system type... x86_64-apple-darwin17.7.0
 checking host system type... x86_64-apple-darwin17.7.0
 checking target system type... x86_64-apple-darwin17.7.0
 checking MacPorts version... 2.6.3
 checking for sw_vers... /usr/bin/sw_vers
 checking for defaults... /usr/bin/defaults
 checking for xcode-select... /usr/bin/xcode-select
 checking macOS version... 10.13.6
 checking Xcode location... /Library/Developer/CommandLineTools
 checking whether the C compiler works... no
 configure: error: in `/opt/local/var/macports/build
 /_Users_rschmidt_macports_macports-ports-ryandesign-
 fork_sysutils_macports.sqlext/macports.sqlext/work/MacPorts-2.6.3':
 configure: error: C compiler cannot create executables
 See `config.log' for more details
 }}}

 {{{
 configure:2961: checking for C compiler version
 configure:2970: ccache /usr/bin/clang --version >&5
 ./configure: line 2972: ccache: command not found
 configure:2981: $? = 127
 configure:2970: ccache /usr/bin/clang -v >&5
 ./configure: line 2972: ccache: command not found
 configure:2981: $? = 127
 configure:2970: ccache /usr/bin/clang -V >&5
 ./configure: line 2972: ccache: command not found
 configure:2981: $? = 127
 configure:2970: ccache /usr/bin/clang -qversion >&5
 ./configure: line 2972: ccache: command not found
 configure:2981: $? = 127
 configure:3001: checking whether the C compiler works
 configure:3023: ccache /usr/bin/clang -pipe -Os -Werror=implicit-function-
 declaration -arch x86_64 -I/opt/local/include -L/opt/local/lib
 -Wl,-headerpad_max_install_names -arch x86_64 conftest.c  >&5
 ./configure: line 3025: ccache: command not found
 configure:3027: $? = 127
 configure:3065: result: no
 configure: failed program was:
 | /* confdefs.h */
 | #define PACKAGE_NAME "MacPorts"
 | #define PACKAGE_TARNAME "macports"
 | #define PACKAGE_VERSION "2.6.3"
 | #define PACKAGE_STRING "MacPorts 2.6.3"
 | #define PACKAGE_BUGREPORT "macports-dev at lists.macports.org"
 | #define PACKAGE_URL ""
 | /* end confdefs.h.  */
 |
 | int
 | main ()
 | {
 |
 |   ;
 |   return 0;
 | }
 configure:3070: error: in `/opt/local/var/macports/build
 /_Users_rschmidt_macports_macports-ports-ryandesign-
 fork_sysutils_macports.sqlext/macports.sqlext/work/MacPorts-2.6.3':
 configure:3072: error: C compiler cannot create executables
 }}}

 ccache is installed and works fine. macports.sqlext builds fine if I
 disable the use of ccache.

 Looks like this is happening because configure.ac uses MP_PATH_SCAN from
 aclocal.m4 which is described as:

 {{{
 dnl This macro ensures MP installation prefix paths are NOT in PATH
 dnl for configure to prevent potential problems when base/ code is updated
 dnl and ports are installed that would match needed items.
 }}}

 This is desired when building MacPorts base outside of MacPorts but not
 really desired when building the sqlite extension within MacPorts.

 We could punt and just prohibit the use of ccache (and distcc) in this
 portfile, or we could try to remove this PATH manipulation from the
 configure script.

 Or since we're not building the sqlext as part of MacPorts anymore, we
 could move its code to an entirely separate repository/project.

-- 
Ticket URL: <https://trac.macports.org/ticket/62368>
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