[Fdo-trac] [fdo-trac] #956: Build errors in GCC 7.x

[FDO]

#956: Build errors in GCC 7.x
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 Reporter:  jng           |        Owner:  jng
     Type:  defect        |       Status:  assigned
 Priority:  major         |    Milestone:
Component:  Build System  |      Version:
 Severity:  3             |   Resolution:
 Keywords:                |  External ID:
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Description changed by jng:

Old description:

> I tried to build FDO trunk on Ubuntu 18.04 LTS, which includes GCC 7.x
> but it fails due to the following:
>
>  * General: Errors of the form {{{invalid conversion from ‘wchar_t’ to
> ‘wchar_t*’}}} in {{{'\0'}}} assignment due to {{{-fpermissive}}}. Fix:
> Fix up the incorrect assignments.
>  * MySQL Driver: The {{{<string>}}} header included in {{{stdafx.h}}} now
> complains about {{{errno}}} due to finding {{{errno.h}}} in the MySQL
> Driver directory before {{{<cerrno>}}}. Fix: Rather that fight with
> include path precedence, just rename {{{errno.h}}} to {{{drv_errno.h}}}
> so {{{<string>}}} will properly resolve errno in {{{<cerrno>}}}
>  * King Oracle:
> {{{Providers/KingOracle/src/Provider/c_FdoOra_API3.cpp:104:14: error:
> cannot convert ‘bool’ to ‘c_MapOraNameToFdoClass::s_data*’ in return}}}.
> Fix: Return {{{NULL}}} instead of {{{false}}}

New description:

 I tried to build FDO trunk on Ubuntu 18.04 LTS, which includes GCC 7.x but
 it fails due to the following:

  * General: Errors of the form {{{invalid conversion from ‘wchar_t’ to
 ‘wchar_t*’}}} in {{{'\0'}}} assignment due to {{{-fpermissive}}}. Fix: Fix
 up the incorrect assignments.
  * General: Various cases of improper null terminator checking {{{error:
 ISO C++ forbids comparison between pointer and integer [-fpermissive]}}}.
 Fix: Fix up the incorrect checks.
  * MySQL Driver: The {{{<string>}}} header included in {{{stdafx.h}}} now
 complains about {{{errno}}} due to finding {{{errno.h}}} in the MySQL
 Driver directory before {{{<cerrno>}}}. Fix: Rather that fight with
 include path precedence, just rename {{{errno.h}}} to {{{drv_errno.h}}} so
 {{{<string>}}} will properly resolve errno in {{{<cerrno>}}}
  * King Oracle:
 {{{Providers/KingOracle/src/Provider/c_FdoOra_API3.cpp:104:14: error:
 cannot convert ‘bool’ to ‘c_MapOraNameToFdoClass::s_data*’ in return}}}.
 Fix: Return {{{NULL}}} instead of {{{false}}}

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Ticket URL: <https://trac.osgeo.org/fdo/ticket/956#comment:3>
FDO <http://fdo.osgeo.org/>
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