| Summary: | error: 'scanner' was not declared in this scope | ||
|---|---|---|---|
| Product: | Mesa | Reporter: | Alexandre Demers <alexandre.f.demers> |
| Component: | glsl-compiler | Assignee: | Ian Romanick <idr> |
| Status: | RESOLVED DUPLICATE | QA Contact: | |
| Severity: | normal | ||
| Priority: | medium | CC: | maxijac |
| Version: | git | ||
| Hardware: | Other | ||
| OS: | All | ||
| Whiteboard: | |||
| i915 platform: | i915 features: | ||
|
Description
Alexandre Demers
2013-07-27 13:57:43 UTC
I'm getting this too since some days. I tried to bisect, but it does not seem to be related to mesa since old commits do not build for me anymore. So IMO it's either one of the depends or build switches that I mayu have changed... OK, so this is caused by bison 3. Downgrading to bison 2.7 fixes the build. (In reply to comment #1) > I'm getting this too since some days. > I tried to bisect, but it does not seem to be related to mesa since old > commits do not build for me anymore. > So IMO it's either one of the depends or build switches that I mayu have > changed... I'm experiencing the same thing: older commits that were building can't be built anymore. My system also uses bison 3 now. It may have been upgraded in the last week (Arch Linux 64). (In reply to comment #3) > (In reply to comment #1) > > I'm getting this too since some days. > > I tried to bisect, but it does not seem to be related to mesa since old > > commits do not build for me anymore. > > So IMO it's either one of the depends or build switches that I mayu have > > changed... > > I'm experiencing the same thing: older commits that were building can't be > built anymore. My system also uses bison 3 now. It may have been upgraded in > the last week (Arch Linux 64). Yes, just downgrade to 2.7 (I can send you the package if needed) and it works again. Now, where is the bug? In bison or mesa? Both? Bison 3 has several warning when using -W :
$ bison -o glsl_parser.cpp -p "_mesa_glsl_" --defines=../../src/glsl/glsl_parser.h glsl_parser.yy -W
glsl_parser.yy:270.18: avertissement: règle vide sans %empty [-Wempty-rule]
version_statement:
^
glsl_parser.yy:306.25: avertissement: règle vide sans %empty [-Wempty-rule]
extension_statement_list:
^
glsl_parser.yy:884.4-886.4: avertissement: règle vide sans %empty [-Wempty-rule]
{
^
glsl_parser.yy:1989.4-1991.4: avertissement: règle vide sans %empty [-Wempty-rule]
{
^
glsl_parser.yy:2194.4-2197.4: avertissement: règle vide sans %empty [-Wempty-rule]
{
^
Whereas using the same command with bison 2.7 produces absolutely no warning output.
(In reply to comment #5) > Bison 3 has several warning when using -W : > $ bison -o glsl_parser.cpp -p "_mesa_glsl_" > --defines=../../src/glsl/glsl_parser.h glsl_parser.yy -W > glsl_parser.yy:270.18: avertissement: règle vide sans %empty [-Wempty-rule] > version_statement: > ^ > glsl_parser.yy:306.25: avertissement: règle vide sans %empty [-Wempty-rule] > extension_statement_list: > ^ > glsl_parser.yy:884.4-886.4: avertissement: règle vide sans %empty > [-Wempty-rule] > { > ^ > glsl_parser.yy:1989.4-1991.4: avertissement: règle vide sans %empty > [-Wempty-rule] > { > ^ > glsl_parser.yy:2194.4-2197.4: avertissement: règle vide sans %empty > [-Wempty-rule] > { > ^ > > Whereas using the same command with bison 2.7 produces absolutely no warning > output. Oops, sorry, same output in english: $ LC_ALL=C bison -o glsl_parser.cpp -p "_mesa_glsl_" --defines=../../src/glsl/glsl_parser.h glsl_parser.yy -W glsl_parser.yy:270.18: warning: empty rule without %empty [-Wempty-rule] version_statement: ^ glsl_parser.yy:306.25: warning: empty rule without %empty [-Wempty-rule] extension_statement_list: ^ glsl_parser.yy:884.4-886.4: warning: empty rule without %empty [-Wempty-rule] { ^ glsl_parser.yy:1989.4-1991.4: warning: empty rule without %empty [-Wempty-rule] { ^ glsl_parser.yy:2194.4-2197.4: warning: empty rule without %empty [-Wempty-rule] { ^ |
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