[MacPorts] #61612: xorg-libx11 @1.7.0 variant +docs does not build on El Capitan, OK on Big Sur (Java problem?)

[MacPorts]

#61612: xorg-libx11 @1.7.0 variant +docs does not build on El Capitan, OK on Big
Sur (Java problem?)
--------------------------+----------------------
  Reporter:  snowflake    |      Owner:  jeremyhu
      Type:  defect       |     Status:  assigned
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:  2.6.99
Resolution:               |   Keywords:
      Port:  xorg-libx11  |
--------------------------+----------------------

Comment (by snowflake):

 The version info of the java on El Capitan is
 {{{
 openjdk version "1.8.0_275"
 OpenJDK Runtime Environment (AdoptOpenJDK)(build 1.8.0_275-b01)
 OpenJDK 64-Bit Server VM (AdoptOpenJDK)(build 25.275-b01, mixed mode)
 }}}

 Later versions of openjdk document the JDK_JAVA_OPTIONS environment
 variable in the java(1) page.

 I set JDK_JAVA_OPTIONS to -Xmx8000k and exported it. The destroot phase
 now succeeds with openjdk 1.8.0_275 on El Capitan.

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Ticket URL: <https://trac.macports.org/ticket/61612#comment:4>
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