package: moving field data process before variable process in process_pkgconfig

Currently, the latest version abseil-cpp contains a new library named "absl_log_internal_format", it's
basic package config(.pc file) as below:

prefix=/usr
exec_prefix=${prefix}

......

Requires: absl_config = 20230125, absl_core_headers = 20230125, absl_log_internal_append_truncated = 20230125,
absl_log_internal_config = 20230125, absl_log_internal_globals = 20230125, absl_log_severity = 20230125,
absl_strings = 20230125, absl_str_format = 20230125, absl_time = 20230125, absl_span = 20230125
......

Normally, the process_pkgconfig() would process variable data before field data in a .pc file, but in the
absl_log_internal_format, the field data in "Requires" section contains "xxxx = xxxx" format, the
process_pkgconfig() treats them as normal variable and using the setVar() in bitbake's data_smart.py
try to process. The absl_log_internal_format field data contains "_append_", this hit the setVar() checking
and finally bitbake stop building and reporting an error as below:

"Variable xxx contains an operation using the old override syntax. Please convert this layer/metadata before attempting to use with a newer bitbake."

This patch move the field data process before variable process to avoid the process_pkgconfig() treat the field
data as variable.

(From OE-Core rev: a73e269d3e591a10bb397b94b82e3fb960112d33)

Signed-off-by: Xiangyu Chen <xiangyu.chen@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 6 insertions, 6 deletions

diff --git a/meta/lib/oe/package.py b/meta/lib/oe/package.py
index c9eb75d852..7a6b31957a 100644
--- a/meta/lib/oe/package.py
+++ b/meta/lib/oe/package.py
@@ -1823,18 +1823,18 @@ def process_pkgconfig(pkgfiles, d):
                     with open(file, 'r') as f:
                         lines = f.readlines()
                     for l in lines:
-                        m = var_re.match(l)
-                        if m:
-                            name = m.group(1)
-                            val = m.group(2)
-                            pd.setVar(name, pd.expand(val))
-                            continue
                         m = field_re.match(l)
                         if m:
                             hdr = m.group(1)
                             exp = pd.expand(m.group(2))
                             if hdr == 'Requires':
                                 pkgconfig_needed[pkg] += exp.replace(',', ' ').split()
+                                continue
+                        m = var_re.match(l)
+                        if m:
+                            name = m.group(1)
+                            val = m.group(2)
+                            pd.setVar(name, pd.expand(val))
 
     for pkg in packages.split():
         pkgs_file = os.path.join(shlibswork_dir, pkg + ".pclist")